Mammal Facts: Surprising Truths About Our Furry Relatives

Mammals are warm-blooded vertebrates that share several defining characteristics, including hair or fur, mammary glands that produce milk for offspring, and a neocortex region in the brain. This article presents evidence-based facts about mammalian biology, behavior, and health that are useful for students, researchers, life-science professionals, and informed general readers. The content draws on peer-reviewed literature and official scientific sources to separate established knowledge from speculation. Readers will learn about thermoregulation, disease transmission, evolutionary history, and practical considerations for those who work with or study mammals.

At a Glance: Key Mammal Facts and Their Practical Relevance

Defining Characteristics of Mammals

Mammals belong to the class Mammalia and share a set of anatomical and physiological features that distinguish them from other vertebrates. Hair or fur covers the body of most mammals at some life stage. Mammary glands produce milk to nourish young. The lower jaw consists of a single bone, and the middle ear contains three bones that transmit sound. These features appear across the approximately 6,500 living species of mammals, from tiny shrews to blue whales.

The fossil record shows that mammals existed before 300 million years ago, though easily fossilized mammal remains are not found before that time. After the extinction of the dinosaurs, mammals and birds radiated throughout the planet according to the fossil record. This evolutionary history explains the diversity of mammalian forms and adaptations observed today. Evolutionary theory explains the patterns observed in the fossil record, including the succession of species over geological time. The fact that researchers can construct consistent phylogenetic trees using distinct genetic markers in the genome is explained by evolutionary theory. The processes that drive evolution, on both short and long time scales, are observable facts.

Thermoregulation and Metabolic Adaptations

Thermoregulation is a fundamental biological process that allows birds and mammals to maintain a stable internal temperature despite environmental fluctuations. This mechanism has been shaped by millions of years of evolution. Non-shivering thermogenesis, primarily driven by brown adipose tissue, plays a central role in thermoregulation by helping maintain energy homeostasis and influencing broader metabolic and physiological processes.

Recent research has revealed that brown adipose tissue thermogenesis is regulated by peripheral hormones and at a central level. Key hypothalamic energy-sensing pathways, such as AMP-activated protein kinase and endoplasmic reticulum stress, play critical roles in this regulation. Beyond its metabolic functions, brown adipose tissue and non-shivering thermogenesis have emerged as important contributors to tumor biology, offering therapeutic strategies for metabolic and oncological diseases.

The mechanisms underpinning non-shivering thermogenesis include UCP1-dependent thermogenesis and alternative pathways such as creatine cycling, calcium-dependent thermogenesis, and lipid cycling. In mammals, adipose tissue is an active secretory tissue that responds to mild hypothermia and serves as a model to study molecular and cellular adaptive responses to cold stress. A mammal-specific protein of the endoplasmic reticulum, calsyntenin 3 beta, is strongly induced in inguinal subcutaneous white adipocytes upon exposure to cold. This protein regulates sympathetic innervation of thermogenic adipocytes and contributes to adaptive non-shivering thermogenesis.

For livestock producers, understanding thermoregulation informs decisions about shelter, bedding, and nutrition during cold weather. Animals experiencing cold stress require additional energy to maintain body temperature, and managers should adjust feed rations accordingly. The calcium- and zinc-binding protein S100B acts as a downstream effector in the calsyntenin 3 beta pathway, highlighting the molecular complexity of cold adaptation in mammals.

The Only Venomous Mammals

Venom production is rare among mammals, but several species have evolved this defense mechanism. The platypus is a unique mammal that produces venom through spurs on the hind legs of males. This Australian monotreme represents one of the few venomous mammal species. The platypus belongs to the monotremes, an ancient group of egg-laying mammals that also includes echidnas.

Male platypuses have keratinous spurs connected to venom glands in the thigh region. During the breeding season, these glands become more active, and the venom can cause severe pain and swelling in humans who are spiked. The venom contains a complex mixture of proteins, including defensin-like peptides and C-type natriuretic peptides. Research on platypus venom continues to reveal novel compounds with potential biomedical applications.

Other venomous mammals include several species of shrews and the solenodon, a primitive insectivore found in the Caribbean. These animals produce toxic saliva that helps subdue prey. The evolution of venom in mammals demonstrates the diverse strategies that different lineages have developed for survival and predation.

Longevity Records Among Mammals

The bowhead whale holds the record for the longest-living mammal, with individuals estimated to live over 200 years. These Arctic whales have fascinated researchers because of their extreme longevity and resistance to age-related diseases. The Greenland shark, though not a mammal, also exhibits remarkable longevity, but among mammals the bowhead whale stands out.

Several factors contribute to the bowhead whale's long lifespan. Their large body size, slow metabolism, and cold-water habitat may all play roles in their extended longevity. Researchers have identified genetic adaptations in bowhead whales that may protect against cancer and other age-related diseases. These findings have implications for understanding aging processes in all mammals, including humans.

Among terrestrial mammals, elephants and some primates also exhibit notable longevity. African elephants can live 60 to 70 years in the wild, while some primates, such as chimpanzees and humans, have lifespans exceeding 50 years. The naked mole-rat, a rodent native to East Africa, can live over 30 years, which is exceptional for a small mammal. These species provide valuable models for studying the biology of aging.

Mammalian Evolution and Diversity

Evolution is both a fact and a theory. Evolution is widely observable in laboratory and natural populations as they change over time. The fact that annual flu vaccines are needed is one example of observable evolution. At the same time, evolutionary theory explains more than observations, such as the succession in the fossil record. Evolution is the scientific theory that embodies biology, including all organisms and their characteristics.

Evolution explains every biological detail, similar to how history explains many aspects of a current political situation. Only evolution explains the patterns observed in the fossil record. Examples include the succession in the fossil record, where easily fossilized mammals are not found before 300 million years ago. After the extinction of the dinosaurs, the fossil record indicates that mammals and birds radiated throughout the planet. Additionally, the ability to construct fairly consistent phylogenetic trees using distinct genetic markers in the genome is explained by evolutionary theory. The processes that drive evolution, on both short and long time scales, are observable facts.

Range dynamics in sibling species provide insights into mammalian evolution and distribution. Species complexes comprise pairs of sibling and morphologically close species that until recently were not unambiguously distinguished. Range dynamics of this group of species is of great interest because it determines the emergence of high species diversity and the realization of mechanisms of compact organization of communities that include close species. Examples among bats include Plecotus auritus and austriacus, Pipistrellus pipistrellus and pygmaeus, and Eptesicus serotinus and lobatus. Among rodents, examples include Spermophilus suslicus and odessanus, Microtus arvalis and obscurus, and Mus musculus species complexes.

Mammalian Blood Cell Development

Haematopoiesis in fish and mammals is a complex process, and many aspects regarding its model and the differentiation of haematopoietic stem cells remain enigmatic despite advanced studies. The effects of microenvironmental factors or haematopoietic stem cell niches and signalling pathways on haematopoiesis are also unclear. Research using zebrafish as a model organism has contributed significantly to understanding haematopoiesis in vertebrates.

The zebrafish model has helped describe the development of haematopoiesis during the embryonic period and in adult fish. It has also clarified the role of the microenvironment of the haematopoietic process in regulating the formation and function of haematopoietic stem cells and haematopoietic stem and progenitor cells. These findings highlight facts and research areas important for haematopoiesis in fish and mammals.

For veterinary professionals and researchers, understanding haematopoiesis is essential for diagnosing and treating blood disorders in mammals. The conservation of haematopoietic processes across vertebrates means that findings from model organisms can inform clinical practice in domestic and wild mammals.

Mammalian Hormonal Regulation

The endocrine system regulates numerous physiological processes in mammals, including growth, reproduction, metabolism, and osmoregulation. Prolactin, a hormone produced by the anterior pituitary gland, has osmoregulatory functions in fishes that project onto mammals. This hormone plays roles in lactation, reproduction, and fluid balance across vertebrate species.

Pancreatic alpha-cell hyperplasia is a condition characterized by a diffuse and specific increase in the number of alpha-cells in the pancreas. This condition was once an esoteric pathological entity but has become an important differential diagnosis of hyperglucagonemia after inactivating glucagon receptor genomic mutations were found in patients with the condition. A dozen cases have been reported and fall into three clinical types: reactive, functional, and nonfunctional.

Reactive alpha-cell hyperplasia is caused by inactivating glucagon receptor mutations and is characterized by remarkable hyperglucagonemia without glucagonoma syndrome. Its main clinical significance is pancreatic neuroendocrine tumors diagnosed at middle age. The Gcgr knockout mouse model of reactive alpha-cell hyperplasia exhibits multistage tumorigenesis in the pancreas. Pharmacological agents that inhibit glucagon signaling also cause reactive alpha-cell hyperplasia in animals and possibly in humans. The strong negative feedback control of glucagon signaling is conserved in all mammals studied, including humans.

Mammalian Disease Transmission and Public Health

Rabies in Livestock

Rabies clusters in domestic livestock are rare but can result in human exposure and economic loss for farmers. During a 4-week period in May 2024, five of 35 steers on a Minnesota dairy farm developed neurologic signs consistent with rabies. Three clinically ill steers were euthanized, and brain specimens were submitted for rabies testing. Direct fluorescent antibody testing and whole genome sequencing confirmed rabies virus, specifically the North Central Skunk variant, in all three steers.

After identification of the first two rabid steers, the remaining animals were quarantined for 120 days and vaccinated against rabies. Three additional steers became ill during quarantine and were euthanized. The Minnesota Department of Health and Minnesota Board of Animal Health investigated human and animal exposures through interviews and site visits. Five persons were recommended to receive rabies postexposure prophylaxis because of known or potential exposures.

The outbreak likely resulted from a single rabid skunk biting multiple cattle housed in a small pen, although steer-to-steer transmission cannot be ruled out. In addition to the loss of livestock, direct medical and veterinary costs associated with this outbreak totaled approximately $35,000. Preventive vaccination of cattle should be considered in areas with high activity of terrestrial rabies, presence of high-value livestock, and potential for human exposure.

Avian Influenza in Mammals

The spring of 2024 witnessed an unprecedented spread of highly pathogenic avian influenza virus in dairy herds in the United States. This crossing of interspecies barriers by the virus creates a real danger of pandemic manifestations in humans. The continued spread of H5N1 clade 2.3.4.4b in dairy populations and other mammalian species and efficient animal-to-animal transmission increases the risk of infection and subsequent spread of the virus in human populations.

Risk assessments for the potential introduction and spread of highly pathogenic avian influenza in cows consider factors such as the high concentration of dairy cows in high-risk areas for avian influenza A. The possibility of the virus jumping the interspecies barrier and spreading in dairy herds is considered very high in some regions. Farmers should monitor for signs of respiratory illness in dairy cattle and report unusual mortality or morbidity to veterinary authorities.

High pathogenicity avian influenza virus H5N1 subtype, clade 2.3.4.4b, is expanding its host and geographical range and invaded Antarctica in 2023. The virus caused high mortality in a breeding colony of skuas at one of ten sites in Antarctica visited in March 2024. Combined virological, bacteriological, and pathological analyses found that the virus caused multi-organ necrosis and rapid death in skuas but not in other species examined. Skuas may play a substantial role in the spread of the virus across Antarctica because of their wide distribution and ecological relevance.

Bat-Borne Viruses

Bats are a considerable source of many zoonotic viruses, including coronaviruses, filoviruses, and paramyxoviruses. Among viruses associated with bats, RNA viruses are the dominant ones, characterized by high pathogenicity and often leading to interspecies transmission. The majority, about 80%, of RNA viruses were identified in bats from three families: Vespertilionidae, Rhinolophidae, and Pteropodidae.

The recent SARS-CoV-2 pandemic indicated the need to monitor zoonotic viruses with pandemic potential. The presence and activity of bats, as well as diseases emerging in humans in various regions of the world, point to their importance in the context of a possible outbreak of future epidemics. The rate of genetic change observed among viruses requires constant scrutiny on all continents, including Europe.

Understanding how viruses are transmitted in the environment and the role of reservoir organisms and intermediate hosts is crucial to determining the level of epidemic risk. For wildlife managers and public health officials, monitoring bat populations and testing for viral presence supports early detection of emerging disease threats.

Laboratory-Associated Outbreaks

Accidental escapes of pathogens from laboratories continue to cause outbreaks in the community today, posing significant risks to the general public, animal communities, and the environment. These incidents highlight the need to consider unnatural origins as part of emerging outbreak surveillance and detection. Identifying recurring patterns and distinctive factors of laboratory-associated disease outbreaks can aid in successfully preventing and mitigating these occurrences.

Seventy incidents of laboratory-associated leaks that led to outbreaks in the wider public have been reported. Seven renowned cases that have been comprehensively studied include the 1955 Polio vaccine incident in western USA, the 1977 H1N1 influenza virus re-emergence in China and the Soviet Union, the 1979 Anthrax release in Sverdlovsk, Soviet Union, the 1995 Venezuelan equine encephalitis epidemics in Venezuela and Colombia, the 2003 to 2004 SARS-CoV-1 escapes from Singapore, Taiwan and China, the 2007 Foot-and-Mouth disease virus outbreak in Pirbright, England, and the 2019 Brucella leak in Lanzhou, China.

Thematic analysis of these lines of evidence revealed seven recurring insights described in historically confirmed laboratory-associated outbreaks: unusual strain characteristics, peculiar clinical manifestations or affected demographics, unusual geographical features, and atypical epidemiological factors. These patterns can inform surveillance and response protocols for emerging infectious diseases affecting mammals.

Mammalian Nervous System and Behavior

Seasonal Changes in Brain Structure

Seasonal changes in hippocampus size and spatial behavior occur in mammals and birds. The hippocampus is a brain region involved in spatial memory and navigation. Research has documented that the size of this structure can change seasonally in some species, correlating with changes in spatial behavior and food-caching activities.

For species that cache food for winter survival, such as some rodents and birds, the hippocampus expands during the caching season and may shrink when caching behavior declines. These findings demonstrate the remarkable plasticity of the mammalian brain and its ability to adapt to environmental demands.

Nervous System Function Under Deep Cooling

Research has examined whether the nervous system functions of mammals can be restored during deep cooling without warming. Studies have explored the evolution of views on this topic, investigating the potential for nervous system recovery under hypothermic conditions. These investigations have implications for understanding the limits of mammalian cold tolerance and potential therapeutic applications of controlled hypothermia.

The ability of some mammals to survive periods of deep cooling, such as during hibernation, involves complex physiological adaptations. Hibernating mammals can reduce their body temperature and metabolic rate dramatically while maintaining the capacity to rewarm and resume normal activity. Understanding these mechanisms may inform medical approaches to organ preservation and resuscitation.

Mammalian Microbiome and Commensal Microbes

Commensal microbes in mammals play essential roles in health and disease. The microbiome, the collection of microorganisms living in and on the body, influences digestion, immune function, and resistance to pathogens. Research on commensal microbes in mammals has revealed the complexity of host-microbe interactions and their implications for animal health.

The gut microbiome of mammals contains trillions of bacteria, archaea, viruses, and fungi that contribute to nutrient metabolism and immune development. Disruptions to the microbiome, such as those caused by antibiotic treatment or dietary changes, can have significant health consequences. For livestock producers, maintaining a healthy gut microbiome in production animals supports growth, feed efficiency, and disease resistance.

Virophages, which are viruses that infect giant viruses, have been found in humans and animals, including ruminants. These infectious agents interact negatively with giant viruses by affecting their replication and morphogenesis. Virophages are classified in the family Lavidaviridae with two genera, Sputnikovirus and Mavirus. Their specific structure and function make them, together with the biological features of giant viruses, form the basis for discussing the existence of a fourth domain in addition to Bacteria, Archaea, and Eukaryota.

Marine Mammals and Acoustic Disturbance

Marine mammals face unique challenges from human activities, including acoustic disturbance from naval operations. Goose-beaked whales, also known as Ziphius cavirostris, have been involved in marine mammal stranding events associated with the use of naval mid-frequency active sonar. Research has sought to detect and characterize behavioral responses of these whales to sonar exposure.

A study deployed Sound and Motion Recording and Telemetry tags on 13 goose-beaked whales in the Southern California Bight. The study area includes the United States Navy's Southern California Anti-submarine Warfare Range, and deployments overlapped temporally with training exercises including mid-frequency active sonar use. Hierarchical hidden Markov models provided a framework to model whale behavior and putative responses to sonar at two relevant time scales: foraging dive cycles, which may last hours, and five-minute intervals, where finer-scale changes in movement and behavior are evident.

The study analyzed 70.7 days of tag data representing 361 foraging dive cycles, 52 with mid-frequency active sonar detections. Cumulative sound energy level per dive cycle ranged from 69.9 to 160.3 dB re 1 microPascal squared seconds, with a median of 121.3. Two dive-cycle states were identified: Typical and Variant. In the Variant state, durations of dive cycles, foraging dives, non-foraging dives, and echolocation periods were shorter on average but more variable, while time spent near the surface and net distance traveled were longer and more variable. Cumulative sonar sound energy level increased the probability of switching from Typical to Variant dive-cycle state.

Marine mammal governance involves multiple stakeholders, including non-governmental organizations that play significant roles in policy development and conservation efforts. Understanding the impacts of human activities on marine mammals requires ongoing research and adaptive management approaches.

Practical Assessment Steps for Mammal Health and Management

For farmers, wildlife managers, and researchers working with mammals, systematic assessment supports early detection of health problems and informed management decisions.

Step 1: Establish baseline records. Document normal behavior, body condition, feed intake, and production parameters for each animal or group. Baseline data enables recognition of deviations that may indicate health problems.

Step 2: Monitor for neurologic signs. Neurologic signs consistent with rabies in livestock include behavioral changes, incoordination, excessive salivation, and paralysis. Any animal showing these signs should be isolated and reported to veterinary authorities immediately.

Step 3: Track respiratory health. Monitor for coughing, nasal discharge, reduced feed intake, and decreased milk production, which may indicate respiratory disease including influenza. Report unusual patterns to veterinary authorities.

Step 4: Maintain vaccination programs. Consider preventive vaccination of cattle in areas with high activity of terrestrial rabies, presence of high-value livestock, and potential for human exposure. Follow jurisdiction-specific requirements for rabies control.

Step 5: Document all observations. Maintain accurate records of health observations, treatments, and outcomes. Records support veterinary diagnosis and regulatory compliance.

Step 6: Escalate concerns promptly. Contact a veterinarian or veterinary authority when animals show unexplained illness, multiple animals become ill within a short period, or zoonotic disease is suspected.

Common Failure Patterns in Mammal Health Management

Several recurring problems undermine effective mammal health management. Recognizing these patterns helps managers avoid costly mistakes.

Failure to recognize early disease signs. Many producers delay veterinary consultation until animals are severely ill. Early recognition of subtle behavioral and production changes enables earlier intervention and better outcomes.

Inadequate biosecurity. Allowing wildlife access to livestock feed and water can introduce diseases such as rabies and avian influenza. Implementing biosecurity measures that exclude wildlife reduces disease transmission risk.

Incomplete vaccination records. Without accurate vaccination records, managers cannot verify protection status or comply with regulatory requirements. Maintain complete records for all animals.

Ignoring zoonotic disease potential. Some mammalian diseases can transmit to humans. Workers should use appropriate personal protective equipment when handling sick animals and seek medical attention for potential exposures.

Failure to report unusual mortality. Unusual mortality events may indicate emerging disease threats with broader implications. Prompt reporting to veterinary authorities supports rapid response and containment.

Limitations and Uncertainties in Mammal Research

Research on mammals faces several limitations that affect the interpretation and application of findings. Many aspects of haematopoiesis remain enigmatic despite advanced studies. The effects of microenvironmental factors and signalling pathways on haematopoiesis are unclear. Similarly, the precise mechanisms of some therapeutic agents are not fully understood.

The distinction between facts and values in scientific research is a challenging issue. In some cases, it might be possible to examine to what extent facts are true, while in other cases, facts are laden with values that cannot be confirmed or falsified with observation alone. The level of good implicit in a fact is a challenging issue that goes well beyond science and makes metaethical assumptions about the relationships between facts and values more broadly.

Research on mammalian biology often relies on model organisms, such as zebrafish for haematopoiesis studies. While these models provide valuable insights, findings may not always translate directly to other species. Researchers and practitioners should consider the limitations of model systems when applying findings to specific mammalian species.

Welfare and Safety Context

Mammal research and management must balance scientific objectives with animal welfare considerations. The equipoise between empathy and the rational, decisive nature of care is central to good practice. Recognizing the intersections between facts and feelings makes for better practitioners.

For livestock producers, providing appropriate nutrition, housing, and veterinary care supports both animal welfare and productivity. Animals experiencing cold stress require additional energy and protection from harsh weather. Understanding thermoregulation informs these management decisions.

For researchers, ethical treatment of mammals in research requires adherence to institutional animal care guidelines and applicable regulations. The three Rs, replacement, reduction, and refinement, guide ethical decision-making in animal research.

For wildlife managers, conservation decisions should consider both ecological objectives and individual animal welfare. Marine mammal governance involves multiple stakeholders with sometimes competing interests, requiring transparent and inclusive decision processes.

Professional Escalation Criteria

Recognizing when to escalate concerns to veterinary or public health authorities is critical for effective mammal health management. The following situations warrant immediate professional consultation:

Suspected rabies. Any mammal showing neurologic signs consistent with rabies should be reported to veterinary authorities immediately. Livestock owners should isolate affected animals and avoid direct contact without appropriate protection.

Unusual mortality events. Multiple animals dying within a short period, especially with similar clinical signs, may indicate an emerging disease threat. Report such events to veterinary authorities promptly.

Zoonotic disease exposure. Persons who have been bitten, scratched, or otherwise potentially exposed to rabid animals should seek medical attention immediately. Postexposure prophylaxis is time-sensitive.

Suspected notifiable diseases. Some mammalian diseases are legally reportable to government authorities. Producers should be aware of notifiable disease requirements in their jurisdiction and comply with reporting obligations.

Influenza in dairy cattle. Given the unprecedented spread of highly pathogenic avian influenza in dairy herds, any suspected cases should be reported to veterinary authorities. Early detection supports containment and reduces the risk of further spread.

Frequently Asked Questions

What is the longest-living mammal?

The bowhead whale holds the record for the longest-living mammal, with individuals estimated to live over 200 years. These Arctic whales have fascinated researchers because of their extreme longevity and resistance to age-related diseases. Their large body size, slow metabolism, and cold-water habitat may all contribute to their extended lifespan.

Which mammals are venomous?

The platypus is the most well-known venomous mammal, with males producing venom through spurs on their hind legs. Several species of shrews and the solenodon also produce toxic saliva that helps subdue prey. Venom production is rare among mammals, representing a specialized adaptation in only a few lineages.

How do mammals maintain their body temperature?

Mammals maintain stable internal temperatures through thermoregulation, which involves both shivering and non-shivering thermogenesis. Non-shivering thermogenesis is primarily driven by brown adipose tissue and plays a central role in maintaining energy homeostasis. Recent research has revealed that this process is regulated by peripheral hormones and central hypothalamic pathways.

Why do we need annual flu vaccines?

The need for annual flu vaccines is an example of observable evolution. Influenza viruses change over time through mutation and recombination, requiring updated vaccines to match circulating strains. This demonstrates that evolution is widely observable in natural populations as they change over time.

Can mammals transmit rabies to humans?

Yes, rabies can transmit from mammals to humans through bites or scratches from infected animals. A 2024 Minnesota dairy farm outbreak involved five of 35 steers, and five persons were recommended to receive rabies postexposure prophylaxis because of known or potential exposures. Rabies is a fatal disease, and postexposure prophylaxis is time-sensitive.

What role do bats play in emerging infectious diseases?

Bats are a considerable source of many zoonotic viruses, including coronaviruses, filoviruses, and paramyxoviruses. About 80% of RNA viruses in bats come from three families: Vespertilionidae, Rhinolophidae, and Pteropodidae. Monitoring bat populations supports early detection of emerging disease risks.

How does cold stress affect mammals?

Cold stress triggers adaptive responses in mammals, including activation of brown adipose tissue and non-shivering thermogenesis. A mammal-specific protein called calsyntenin 3 beta is induced in white adipocytes upon exposure to cold and regulates sympathetic innervation of thermogenic adipocytes. For livestock producers, understanding thermoregulation informs decisions about shelter and nutrition during cold weather.

What is the evolutionary significance of mammals?

Evolution explains every biological detail of mammals, similar to how history explains many aspects of a current political situation. The fossil record shows that mammals existed before 300 million years ago and radiated throughout the planet after the extinction of the dinosaurs. The ability to construct consistent phylogenetic trees using distinct genetic markers is explained by evolutionary theory.

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References and Further Reading

• NCBI Literature Resources. National Center for Biotechnology Information.
• PubMed. National Library of Medicine.
• Virophages-Known and Unknown Facts.. Viruses, 2023.
• When facts become feelings.. Birth (Berkeley, Calif.), 2025.
• FAcTs on fire: Exploring thermogenesis.. Advances in genetics, 2025.
• Centipede Envenomation.. 2026.
• Science and evolution.. Genetics and molecular biology, 2019.
• Haematopoiesis in Zebrafish (Danio Rerio).. Frontiers in immunology, 2022.
• Pancreatic α-cell hyperplasia: facts and myths.. The Journal of clinical endocrinology and metabolism, 2014.
• What are considered 'good facts'?. Journal of medical ethics, 2019.
• Rabies Cluster Among Steers on a Dairy Farm - Minnesota, 2024.. 2025.
• Assessment of goose-beaked whale responses to mid-frequency active sonar using a hierarchical hidden Markov model.. 2026.
• Epidemiological indicators of accidental laboratory-origin outbreaks.. 2026.
• Risk Assessment of Spread of the Influenza A Virus in Cows in South Bulgaria.. 2025.
• The expanding H5N1 avian influenza panzootic causes high mortality of skuas in Antarctica.. 2026.
• Bat-Borne Viruses and Pandemic Risk: Could Europe Be an Emergence Hotspot?. 2026.
• Unmasking the Mechanism behind Miltefosine: Revealing the Disruption of Intracellular Ca&lt,sup&gt,2+&lt,/sup&gt, Homeostasis as a Rational Therapeutic Target in Leishmaniasis and Chagas Disease.. 2024.
• Range dynamics in sibling species: facts and reconstructions for the mammal fauna of Eastern Europe. 2019.
• The S100B Protein and Partners in Adipocyte Response to Cold Stress and Adaptive Thermogenesis: Facts, Hypotheses, and Perspectives. Biomolecules, 2020.
• Walker's mammals of the world. 1968.
• Walker's mammals of the world. 1968.
• Facts from feces revisited.. Trends in Ecology & Evolution, 1997.
• The platypus : a unique mammal. 1995.
• Commensal microbes in mammals- Selected facts. Medycyna Weterynaryjna, 2010.
• Can the nervous system functions of mammals be restored during deep cooling without warming? New facts and the evolution of views. Uspekhi Fiziologicheskikh Nauk, 1999.
• Is it possible to rehabilitate the nervous system functions in mammals under deep hypothermia with no warming? New Facts and Evolution of the Views. Uspekhi Fiziologicheskikh Nauk, 1999.
• [Seasonal changes in hippocampus size and spatial behaviour in mammals and birds].. Zhurnal Obshche Biologii, 2011.
• The Role and Impact of NGOs in Marine Mammal Governance. Springer Polar Sciences, 2022.
• [Prolactin osmoregulatory function in fishes and its projection on mammals].. Uspekhi Fiziologicheskikh Nauk, 2011.

This article is educational and does not replace institutional policy, professional advice, or applicable safety and regulatory requirements.