Bottlenose Dolphin: The Intelligent Acrobat of the Seas

The bottlenose dolphin (Tursiops truncatus) is a marine mammal belonging to the order Cetacea, characterized by a streamlined body, a curved dorsal fin, and a pronounced rostrum or beak. This species profile provides students, researchers, life-science professionals, and informed general readers with a detailed examination of bottlenose dolphin biology, behavior, intelligence, and interactions with human activities. The practical outcome of this article is a species profile that includes a dolphin watching etiquette guide based on peer-reviewed evidence about vessel disturbance and dolphin behavior.

At a Glance

Taxonomic Context and Species Diversity

The bottlenose dolphin belongs to the genus Tursiops, which has undergone taxonomic revision in recent decades. The common bottlenose dolphin (Tursiops truncatus) remains the most widely recognized species, but researchers have identified additional forms that merit distinct taxonomic status. A new subspecies, Tursiops truncatus nuuanu, was described from the eastern tropical Pacific based on morphological and genetic evidence [24]. Coastal waters of the Southeastern United States harbor the Tamanend's bottlenose dolphin (Tursiops erebennus), which is now recognized as a separate species from the common bottlenose dolphin [28].

These taxonomic distinctions carry practical consequences for researchers and wildlife managers. Population assessments, habitat protection measures, and fisheries interactions all depend on accurate species identification. The recognition of Tursiops erebennus as a distinct species means that conservation efforts must account for the specific habitat requirements and threats facing this coastal form [16]. Similarly, the description of Tursiops truncatus nuuanu highlights the value of continued taxonomic investigation in understudied regions [24].

Bottlenose dolphins occupy a broad geographic range that extends from tropical to temperate waters. Southernmost records of the species have been documented in high-latitude environments, demonstrating the adaptability of these animals to cold-water conditions [27]. In Brazilian marine protected areas, researchers have documented occurrence patterns, residency, and habitat use for Tursiops truncatus truncatus, providing baseline data for conservation planning in the South Atlantic [26].

Anatomy and Physiological Adaptations

Dentition and Feeding Structures

Bottlenose dolphins possess homodont dentition, meaning their teeth are uniform in shape instead of differentiated into incisors, canines, and molars as seen in terrestrial mammals. Adult dolphins typically have between 18 and 26 conical teeth in each jaw quadrant. These teeth are used for grasping prey instead of chewing, as dolphins swallow their food whole. The number and condition of teeth can provide information about an individual's age and health status during necropsy examinations.

Electroreception and Vibrissal Crypts

A significant sensory adaptation in bottlenose dolphins involves the vibrissal crypts located on the rostrum. In neonates, these structures contain complete vibrissal follicles including a hair shaft, hair papilla, and cavernous sinus. As dolphins mature, the hair shaft is lost, and the crypts undergo a morphological transformation from mechanoreceptors to electroreceptors [8]. This postnatal transformation mirrors the pattern observed in the Guiana dolphin (Sotalia guianensis), the first cetacean species with experimentally demonstrated electroreception [8].

Behavioral experiments have confirmed that bottlenose dolphins can detect direct current electric fields as low as 2.4 and 5.5 microvolts per centimeter, a detection threshold comparable to that of the platypus and the Guiana dolphin [5]. Detection thresholds for alternating current fields at 1, 5, and 25 hertz were generally higher than those for direct current fields, with sensitivity decreasing as frequency increased [5]. This electroreceptive ability supports short-range prey detection in dolphins that pursue benthic foraging strategies, including crater-feeding behavior where dolphins probe the seafloor for buried prey [8]. The ability to detect weak electric fields may also enable dolphins to perceive the Earth's magnetic field through induction-based magnetoreception, potentially supporting large-scale orientation [5].

Immune System Characteristics

The immune system of bottlenose dolphins reflects their adaptation to aquatic life. Research on neutrophil chemotaxis has revealed that dolphin neutrophils show strong migratory responses to zymosan-activated serum and recombinant human interleukin-8, but no response to N-formyl-methionyl-leucyl-phenylalanine or leukotriene B4 at any concentration tested [9]. This pattern differs from that of terrestrial mammals such as cows and humans, which respond to a broader range of chemotactic factors.

A notable finding is that bottlenose dolphin neutrophils exhibit relatively strong chemotactic activity even at 15 degrees Celsius, whereas bovine and human neutrophils show significantly reduced activity at this temperature [9]. This cold-adaptive immune response allows dolphins to mount robust host defenses in aquatic habitats that tend to be colder than terrestrial environments [9].

The development of species-specific immunological reagents remains a priority for dolphin health monitoring. Extensive immunological toolkits exist for laboratory rodents and humans, but marine mammals such as cetaceans have historically lacked equivalent resources [3]. Immune assays could be employed to monitor the health status of cetaceans and serve as an adjunct to available diagnostic tests, enhancing the proper care and stewardship of wild and managed populations [3]. The continued development of these reagents is critical for assessing dolphin responses to environmental alterations, including pathogens, and for monitoring status following vaccination [3].

Intelligence and Cognitive Abilities

Signature Whistles and Individual Recognition

Bottlenose dolphins produce whistles that vary by frequency contour, which is the change in frequency over time. Individual dolphins may broadcast their identities through uniquely contoured whistles known as signature whistles [10]. Research on whistle discrimination has demonstrated that dolphins can discriminate among the whistles of different individuals, associate them with surrogate producers, and group new exemplars of the same dolphin's whistle together when the contour is intact [10].

Categorization appears to be based on contour instead of specific acoustic parameters or voice cues [10]. Whistle sequences that included partial contours were not categorized with the original whistlers, indicating that the complete contour is necessary for recognition [10]. These findings support the signature whistle framework, which suggests that dolphins use individualized whistle contours for identification of known conspecifics [10].

Problem-Solving and Learning Capacity

The cognitive abilities of bottlenose dolphins have been the subject of directed research at facilities such as the Kewalo Basin Marine Mammal Laboratory, where investigators have examined dolphin intelligence through controlled behavioral experiments [23]. Dolphins demonstrate the capacity for cross-modal transfer of learning, as shown in studies where animals trained on a go/no-go paradigm with acoustic stimuli subsequently generalized their responses to optical, mechanical, and electric stimuli [8].

In electroreception studies, dolphins responded spontaneously to the first presentation of a weak electric field, and three of four subjects showed perfect transfer in this modality by responding continuously to electric field amplitudes of 1.5 millivolts per centimeter, successively reduced to 0.5 millivolts per centimeter [8]. This capacity for rapid learning and stimulus generalization indicates sophisticated cognitive processing.

Behavioral Ecology

Foraging Strategies and Prey Selection

Bottlenose dolphins employ diverse foraging strategies that vary by habitat and prey availability. In the Galveston Ship Channel, a narrow and congested waterway supporting large-scale shipping, commercial fishing, dolphin tourism, and recreation, dolphins were observed foraging during 57 percent of behavioral states [7]. The Corpus Christi Ship Channel, another active industrial waterway, showed dolphins foraging during 40 percent of observations [12]. These findings indicate that ship channels serve as important foraging areas for dolphin populations despite high levels of human activity.

Prey identification studies have expanded knowledge of bottlenose dolphin diets. In the St. Johns River in Jacksonville, Florida, researchers identified prey species found in the stomachs of dead dolphins that stranded in the river [16]. This study was the first to document the violet goby (Gobioides broussonnetii) as bottlenose dolphin prey, providing a baseline understanding of foraging ecology for this estuarine community [16]. The identification of previously undetected prey items expands knowledge of potential bottlenose dolphin prey on the Atlantic coast of the United States and can inform ecosystem-based management decisions [16].

Social Structure and Group Dynamics

Bottlenose dolphins are highly social animals that form complex groups with variable composition. Group size serves as a significant predictor of behavioral state and movement patterns in ship channel environments [12]. The presence of calves also influences dolphin behavior, with calf presence emerging as a significant predictor of movement patterns [12].

Social interactions account for a substantial portion of observed behavior in some habitats. In the Galveston Ship Channel, socializing represented 27 percent of observed behavioral states [7]. In the Corpus Christi Ship Channel, socializing accounted for 15 percent of observations [12]. These social behaviors include affiliative interactions, play, and potentially aggressive encounters.

Interspecific interactions have been documented between bottlenose dolphins and other cetacean species. In Patagonia, Argentina, researchers observed feeding aggregations and aggressive interactions between bottlenose dolphins and Commerson's dolphins (Cephalorhynchus commersonii) [25]. Such interactions may reflect competition for prey resources or other ecological dynamics.

Movement Patterns and Habitat Use

Dolphin movement patterns in active waterways are influenced by multiple factors including season, time of day, group size, calf presence, vessel type, and vessel numbers [12]. Researchers use digital theodolite tracking to calculate dolphin movement patterns including swimming speed, reorientation rate, and linearity [7].

In the Galveston Ship Channel, dolphins regularly used the waterway for foraging and socializing, and it was not a travel corridor for accessing other favorable sites, with traveling accounting for only 5 percent of observed behavioral states [7]. This finding indicates that ship channels can serve as resident habitat instead of transit routes.

Interactions with Human Activities

Vessel Disturbance and Behavioral Responses

The convergence of human activity and bottlenose dolphins in active waterways has potentially negative consequences for the animals. Research in the Galveston Ship Channel demonstrated that when boats were present, the proportion of time dolphins spent socializing and foraging was significantly less than expected by chance [7]. Swimming speeds increased significantly in the presence of small recreational boats, dolphin-watching tour boats, shrimp trawlers, and when tour boats and shrimp trawlers were both present [7]. Reorientation rate increased significantly in the presence of tour boats and trawlers [7].

These behavioral responses to vessel presence may result in decreased energy consumption due to disrupted foraging activity [7]. Without proper management, the observed behavioral changes may be detrimental to individuals within affected populations [7].

Similar findings emerged from research in the Corpus Christi Ship Channel, where vessels were present within 300 meters of dolphins during 80 percent of dolphin observations [12]. The high level of industrial activity in this port puts dolphins at risk of human-related disturbance and injury [12]. Researchers emphasized the crucial need to monitor the impact of increased anthropogenic influences on federally protected dolphins in active ship channels, with broad application to dolphins in other ports [12].

Dolphin Watching Etiquette Guide

Based on evidence from vessel disturbance studies, the following etiquette guidelines are recommended for dolphin watching activities:

1. Maintain a minimum distance of 300 meters from observed dolphin groups whenever possible. Vessel presence within this distance has been associated with significant behavioral changes including reduced foraging and socializing [7][12].

2. Reduce speed when dolphins are sighted. Swimming speeds of dolphins increase significantly in the presence of small recreational boats and dolphin-watching tour boats, indicating a disturbance response [7].

3. Avoid sudden course changes or rapid approaches. Reorientation rate increases significantly in the presence of tour boats and trawlers, suggesting that dolphins alter their movement patterns in response to vessel activity [7].

4. Limit the number of vessels around any dolphin group. The number of vessels is a significant predictor of dolphin behavioral state and movement patterns [12].

5. Do not pursue dolphins that are foraging or socializing. These behaviors are disrupted by vessel presence, and continued disturbance may reduce energy intake [7].

6. Give particular consideration to groups with calves. Calf presence is a significant predictor of dolphin movement patterns, and calves may be more vulnerable to vessel disturbance [12].

7. Follow all applicable federal and local regulations regarding marine mammal approach distances and behavior.

Industrial Activity and Habitat Degradation

Estuarine dolphin communities face a suite of challenges including dredging, vessel traffic, fishing gear entanglements, pollution, and natural disturbances [16]. The St. Johns River dolphin community in Jacksonville, Florida, exemplifies these pressures, with regular observations of foraging during photo-identification surveys occurring alongside ongoing habitat modification [16].

The high level of industrial activity in ports such as Corpus Christi creates persistent disturbance risk for resident dolphin populations [12]. Monitoring programs that track dolphin behavioral states and movement patterns in relation to vessel traffic provide essential data for managing these interactions [12].

Research Methods and Technological Applications

Photo-Identification and Individual Recognition

Research on free-ranging animal species depends on identifying individuals. Recognizing wild bottlenose dolphins primarily relies on photographs of distinct patterns of notches that develop on the trailing edge of most dorsal fins [14]. Although photo-identification has advanced to include computer-aided fin identification software, errors can occur for dolphins whose identifying patterns are subtle, obscured, or absent, a condition known as clean fins [14].

Facial pigment patterns on dolphin species were described as bridle marks over a hundred years ago [14]. A 17-year population census of 860 bottlenose dolphins in Palm Beach, Florida, included 458 dolphins with photographic records showing bridle marks [14]. A subset of 30 dolphins with encounter histories spanning at least 7 years was coded using a 17-point system, confirming bridle mark distinctiveness and permanence on all 30 dolphins [14].

Bridle marks can supplement photo-identification as a double-mark system to improve accuracy [14]. This tool is helpful for recognizing calves with clean dorsal fins post weaning and adults without dorsal fin markings [14].

Acoustic Monitoring and Machine Learning

Deep learning has been increasingly employed for identifying dolphin vocalizations. Convolutional neural networks have proven effective in detecting dolphin whistles from spectrograms extracted from underwater audio recordings [15]. A novel method based on convolutional neural networks and Sobel filter achieved model accuracy and F1-score of 90.0 percent in the best-case scenario [15]. The vertical Sobel filter significantly improved convolutional neural network performance compared with unfiltered spectrograms and with contrast-limited adaptive histogram equalization and Laplacian filtering [15].

Machine learning techniques have also been applied to classify underwater sounds, including bottlenose dolphin vocalizations and vessel traffic noise [20]. A neural network approach achieved accuracy exceeding 93 percent when processing and classifying underwater hydrophone sound recordings with high background shipping and tourist boat noise in the Adriatic Sea [20]. These automated classification tools reduce the potential for human error and inattention in processing large volumes of acoustic data [20].

Three-Dimensional Cell Culture Models

The creation of three-dimensional cell models to assess in vitro cell-to-cell and cell-to-matrix interactions in environmental-mimicking conditions is of considerable interest for marine mammal research [4]. Dolphins, as apex predators, can be considered relevant sentinels of the health of marine ecosystems [4]. However, the establishment of cetacean three-dimensional culture systems had not yet been accomplished until recent work with bottlenose dolphin skin fibroblasts [4].

Novel scaffolds based on hyaluronic acid and ionic-complementary self-assembling peptides were compared to Matrigel for culturing dolphin fibroblasts [4]. Matrigel induced cells to form aggregates with lower viability and no extracellular matrix production, while the novel scaffolds allowed dispersed cells to produce a collagenous extracellular matrix containing collagen1a1, laminin B1, and elastin [4]. The hyaluronic acid scaffold with the EAbuK-IKVAV peptide resulted in the most suitable three-dimensional model in terms of cell quantity and viability [4]. This innovative approach represents the first step towards the possibility of creating three-dimensional in vitro models for this protected species [4].

Heart Rate Monitoring in Managed Care

Monitoring physiological states in managed animals is important for health management and welfare assessment [13]. Heart rate variability may provide welfare-relevant information on autonomic regulation, but practical keeper-led approaches for obtaining cardiac data during routine husbandry remain limited in zoos and aquariums [13].

A keeper-led framework has been proposed in which aquarium animal-care teams repeatedly collect heart rate and R-R interval data during routine husbandry [13]. Research partners analyze the cardiac data using available respiratory, behavioral, and health information as context for interpretation, and return the findings to animal-care practice [13]. A commercially available belt-mounted sensor was used while a dolphin maintained a stationary dorsal floating posture at the water surface, and usable heart rate and R-R interval recordings were obtained [13]. These observations are descriptive and do not establish specific autonomic, affective, or welfare states, but they provide a basis for heart rate variability analyses and repeated, context-informed investigation of autonomic patterns in relation to stress-related responses, arousal, recovery, and relatively settled physiological conditions [13].

Health and Disease Considerations

Erysipelas in Bottlenose Dolphins

Infections by Erysipelothrix rhusiopathiae occur in domestic animals and cause the disease known as erysipelas [6]. Cetaceans are highly susceptible to erysipelas, especially those under human care, although the number of cases documented in wild cetaceans is low [6]. The pathogenesis is incompletely understood, and the full spectrum of lesions is not well defined [6].

In October 2022, a common bottlenose dolphin stranded in Vilassar de Mar in Catalonia showing skin lesions consistent with diamond skin disease, a characteristic lesion of erysipelas shared by swine and cetaceans [6]. Necropsy revealed that Erysipelothrix rhusiopathiae grew in pure culture in many tissue samples [6]. Histologically, the main lesions were an intense suppurative vasculitis of leptomeningeal arteries and veins with abundant intramural Gram-positive bacilli and meningeal hemorrhages [6]. Meningeal lesions were considered the cause of death [6]. This case represented the first documented instance of severe brain involvement in erysipelas in a cetacean [6].

Immunological Monitoring

The development of specific and sensitive immune assays will enhance the proper care and stewardship of wild and managed cetacean populations [3]. Immune assays could be employed to monitor the health status of cetaceans and serve as an adjunct to available diagnostic tests [3]. The future availability and continued development of these reagents is critical for improving wild and managed bottlenose dolphin population health through enhanced assessment of their responses to alterations in the marine environment, including pathogens, and for improving the ability to monitor their status following vaccination [3].

Conservation and Management Implications

Protected Species Status

Bottlenose dolphins are federally protected in United States waters, and anthropogenic disturbance poses risks to their populations [12]. The high level of industrial activity in ports such as Corpus Christi puts dolphins at risk of human-related disturbance and injury [12]. There is a crucial need to monitor the impact of increased anthropogenic influences on federally protected dolphins in active ship channels [12].

Mortality Monitoring and Conservation Intelligence

Mortality monitoring systems provide essential data for conservation management. In Aotearoa New Zealand, a conservation architecture for Hector's and Maui dolphins includes statutory reporting, public incident records, necropsy and genetic programmes, fisheries monitoring, abundance surveys, and threat assessments [21]. An audit of mortality records from 2017 to 2024 showed that 64.3 percent of linked locations were estimated, 62.7 percent had a complete necropsy, and 31.0 percent retained an unresolved cause [21].

The assessment concluded that a separate national dolphin mortality-intelligence framework is needed to estimate unseen mortality, preserve provenance, reconcile data, compare causal hypotheses, and publish corrections [21]. These findings have relevance for bottlenose dolphin conservation, as robust mortality data are essential for evaluating conservation performance and revising management when evidence changes [21].

Habitat Protection in Marine Protected Areas

Research in Brazilian marine protected areas has documented occurrence, residency patterns, and habitat use of bottlenose dolphins [26]. Such baseline data are essential for evaluating the effectiveness of protected area design and management. The presence of resident dolphin populations in areas with high human activity underscores the need for integrated management approaches that balance economic activities with conservation requirements.

Common Failure Patterns in Dolphin Conservation and Research

Several recurring challenges emerge from the scientific literature on bottlenose dolphins:

1. Incomplete mortality data: Mortality records frequently lack complete necropsy information or unresolved causes of death, limiting the ability to identify threats [21].

2. Disturbance from unregulated vessel traffic: Dolphin watching and recreational boating can disrupt foraging and socializing behaviors, with potential long-term consequences for energy balance [7][12].

3. Taxonomic confusion: Historical recognition of a single bottlenose dolphin species has complicated conservation planning, as distinct species and subspecies face different threats [24][28].

4. Limited immunological tools: The lack of species-specific reagents has constrained health monitoring and disease research in cetaceans [3].

5. Photo-identification errors: Dolphins with clean fins or subtle markings can be misidentified, affecting population estimates [14].

Professional Escalation Criteria

Researchers, wildlife managers, and animal care professionals should escalate concerns to appropriate authorities under the following circumstances:

1. Stranding events: Any stranded bottlenose dolphin, whether alive or dead, should be reported to the relevant stranding network or wildlife authority immediately.

2. Observed vessel strikes or entanglements: Dolphins with visible injuries consistent with vessel strikes or fishing gear entanglement require immediate reporting to wildlife management agencies.

3. Disease outbreaks: Multiple dolphins showing signs of infectious disease, particularly skin lesions consistent with erysipelas, warrant prompt veterinary and public health consultation [6].

4. Sustained behavioral disturbance: Repeated observations of dolphins altering foraging or social behavior in response to vessel traffic should be documented and reported to marine mammal management authorities [7][12].

5. Mortality clusters: Unusual mortality events involving multiple dolphins require immediate reporting to stranding networks and wildlife health authorities.

Frequently Asked Questions

Are bottlenose dolphins mammals?

Yes, bottlenose dolphins are mammals. They belong to the order Cetacea and share all defining mammalian characteristics including warm-blooded metabolism, air breathing through lungs, live birth, and nursing of young with milk. Their adaptation to aquatic life has produced streamlined bodies, flippers, and a tail fluke, but they retain the fundamental physiological features of mammals.

How many teeth do bottlenose dolphins have?

Bottlenose dolphins have between 18 and 26 conical teeth in each jaw quadrant, giving adults a total of approximately 72 to 104 teeth. These teeth are homodont, meaning they are uniform in shape, and are used for grasping prey instead of chewing. Dolphins swallow their food whole.

What are the different types of bottlenose dolphins?

The bottlenose dolphin genus Tursiops includes the common bottlenose dolphin (Tursiops truncatus) and the Tamanend's bottlenose dolphin (Tursiops erebennus), which is found in coastal waters of the Southeastern United States [28]. A new subspecies, Tursiops truncatus nuuanu, has been described from the eastern tropical Pacific [24]. Additional regional forms may warrant taxonomic recognition as research continues.

How do bottlenose dolphins use electroreception?

Bottlenose dolphins possess vibrissal crypts on their rostrum that function as ampullary electroreceptors [8]. These structures allow dolphins to detect weak electric fields, with detection thresholds for direct current fields as low as 2.4 and 5.5 microvolts per centimeter [5]. Electroreception supports short-range prey detection in benthic foraging and may enable perception of the Earth's magnetic field for large-scale orientation [5].

What is a signature whistle?

A signature whistle is a uniquely contoured whistle produced by an individual bottlenose dolphin that broadcasts its identity [10]. Dolphins can discriminate among the whistles of different individuals and categorize new exemplars of the same dolphin's whistle when the contour is intact [10]. Categorization is based on contour instead of specific acoustic parameters or voice cues [10].

How does vessel traffic affect bottlenose dolphins?

Vessel traffic significantly alters dolphin behavior and movement patterns. In active ship channels, the presence of boats reduces the proportion of time dolphins spend foraging and socializing [7]. Swimming speeds increase in the presence of small recreational boats, dolphin-watching tour boats, and shrimp trawlers [7]. These behavioral changes may result in decreased energy consumption due to disrupted foraging activity [7].

What diseases affect bottlenose dolphins?

Bottlenose dolphins are susceptible to erysipelas caused by Erysipelothrix rhusiopathiae, a disease that can cause severe brain involvement and skin lesions [6]. Cetaceans are highly susceptible to erysipelas, especially those under human care [6]. Immunological monitoring tools are being developed to assess dolphin health responses to pathogens and environmental alterations [3].

How do researchers identify individual dolphins?

Researchers primarily identify individual bottlenose dolphins through photographs of distinct patterns of notches on the trailing edge of dorsal fins [14]. Facial pigment patterns known as bridle marks can supplement dorsal fin photo-identification as a double-mark system to improve accuracy [14]. Bridle marks are particularly helpful for recognizing calves with clean dorsal fins post weaning and adults without dorsal fin markings [14].

Related Articles

• Biology BA vs BS
• Biology BA
• er biology
• ib biology
• Animal Biology

References and Further Reading

• NCBI Literature Resources. National Center for Biotechnology Information.
• PubMed. National Library of Medicine.
• An update on the development of a bottlenose dolphin, Tursiops truncatus, immune reagent toolkit.. Veterinary immunology and immunopathology, 2024.
• Bottlenose dolphin (Tursiops truncatus) immortalized fibroblasts on novel 3D in vitro collagen-free scaffolds.. PloS one, 2024.
• Passive electroreception in bottlenose dolphins (Tursiops truncatus): implication for micro- and large-scale orientation.. The Journal of experimental biology, 2023.
• Erysipelas with preferential brain and skin involvement in a Mediterranean bottlenose dolphin Tursiops truncatus.. Diseases of aquatic organisms, 2024.
• Common bottlenose dolphin (Tursiops truncatus) behavior in an active narrow seaport.. PloS one, 2019.
• Behavioral and anatomical evidence for electroreception in the bottlenose dolphin (Tursiops truncatus).. Anatomical record (Hoboken, N.J. : 2007), 2022.
• Characteristics of neutrophil chemotaxis in bottlenose dolphin (Tursiops truncatus).. Veterinary immunology and immunopathology, 2025.
• Whistle discrimination and categorization by the Atlantic bottlenose dolphin (Tursiops truncatus): a review of the signature whistle framework and a perceptual test.. Behavioural processes, 2008.
• Vessels Disturb Bottlenose Dolphin Behavior and Movement in an Active Ship Channel. 2023.
• Vessels Disturb Bottlenose Dolphin Behavior and Movement in an Active Ship Channel.. 2023.
• Heart Rate and R-R Interval Recording in a Bottlenose Dolphin: Toward a Keeper-Led Framework for HRV-Based Welfare Assessment. 2026.
• The Bridle Mark System on Bottlenose Dolphins (&lt,i&gt,Tursiops truncatus&lt,/i&gt,): Pigmented Facial Features Supplement Photo-Identification.. 2026.
• Intelligent identification of dolphin whistle in acoustic signals via deep learning.. 2026.
• Novel prey item identified for estuarine bottlenose dolphins (Tursiops erebennus) in the Southeastern United States.. 2026.
• dolphin: A Fully Automated Forward-modeling Pipeline Powered by Artificial Intelligence for Galaxy-scale Strong Lenses. Astrophysical Journal, 2025.
• Comparative accuracy of artificial intelligence-based AudaxCeph software, Dolphin software, and the manual technique for orthodontic landmark identification and tracing of lateral cephalograms. Imaging Science in Dentistry, 2024.
• A Review on Dolphin Swarm Algorithm: Applications in Computational Intelligence. New Directions on Hybrid Intelligent Systems, 2024.
• Artificial intelligence-based machine learning data classification for the analysis of underwater noise of ship traffic and bottlenose dolphin sounds. 2023 IEEE International Workshop on Metrology for the Sea, Learning to Measure Sea Health Parameters (MetroSea), 2023.
• From Incident Records to Conservation Intelligence: A Methodological Assessment of Dolphin Mortality Accounting in Aotearoa New Zealand. Pollution and Diseases, 2026.
• Dolphin: Moving Towards Closed-loop Auto-research through Thinking, Practice, and Feedback. Annual Meeting of the Association for Computational Linguistics, 2025.
• Directed Research in Dolphin Intelligence at the Kewalo Basin Marine Mammal Labortaory. 1997.
• Tursiops truncatus nuuanu, a new subspecies of the common bottlenose dolphin from the eastern tropical Pacific. Journal of Mammalian Evolution, 2023.
• Feeding aggregation and aggressive interaction between bottlenose (Tursiops truncatus) and Commerson's dolphins (Cephalorhynchus commersonii) in Patagonia, Argentina. Journal of Ethology, 2010.
• Occurrence, residency patterns and habitat use of the bottlenose dolphin, tursiops truncatus truncatus, on two marine protected areas in Southeastern Brazil. Anais Da Academia Brasileira De Ciencias, 2020.
• Southernmost records of bottlenose dolphins, Tursiops truncatus. Polar Biology, 2011.
• Common and Tamanend's bottlenose dolphins Tursiops truncatus (Montagu, 1821) and T. erebennus (Cope, 1865). Coastal Dolphins and Porpoises Ridgway and Harrison S Handbook of Marine Mammals Volume 1, 2024.

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