Reptile

Assessment of hematologic and corticosterone response in free-living eastern box turtles (Terrapene carolina carolina) at capture and after handling

Hematology is a common tool for wildlife health assessments. Manual leukocyte counts are required in reptiles, however, disagreement between quantification methods has been observed in some chelonians. This study determined agreement between two methods of leukocyte quantification, eosinophilic leukopet, and...

Year Published: 2020Topics: Biological Sampling & Physiological Measurement, HandlingAnimal Type: Reptile, Turtle & Tortoise

Citation: Boers, K. L., Allender, M. C., Novak, L. J. et al. 2020. Assessment of hematologic and corticosterone response in free-living eastern box turtles (Terrapene carolina carolina) at capture and after handling. Zoo Biology 39(1), 13-22.

Behavioral and corticosterone responses to carbon dioxide exposure in reptiles

The use of carbon dioxide (CO2) exposure as a means of animal euthanasia has received considerable attention in mammals and birds but remains virtually untested in reptiles. We measured the behavioral responses of four squamate reptile species (Homalopsis buccata, Malayopython...

Year Published: 2020Topics: EuthanasiaAnimal Type: Lizard, Reptile, Snake

Citation: Natusch, D. J. D., Aust, P. W., Khadiejah, S. et al. 2020. Behavioral and corticosterone responses to carbon dioxide exposure in reptiles. PLOS ONE 15(10), e0240176.

Behavioral diversity as a potential indicator of positive animal welfare

Modern day zoos and aquariums continuously assess the welfare of their animals and use evidence to make informed management decisions. Historically, many of the indicators of animal welfare used to assess the collection are negative indicators of welfare, such as...

Year Published: 2020Topics: Natural Behavior, Welfare AssessmentAnimal Type: All/General, Amphibian, Nonhuman Primate, Reptile

Citation: Miller, L. J., Vicino, G. A., Sheftel, J. et al. 2020. Behavioral diversity as a potential indicator of positive animal welfare. Animals 10(7), 1211.

Comparison of isoflurane, sevoflurane, and desflurane as inhalant anesthetics in prairie rattlesnakes (Crotalus viridis)

OBJECTIVE: To characterize induction and recovery characteristics of 3 commonly used inhalant anesthetics in prairie rattlesnakes (Crotalus viridis): isoflurane, sevoflurane, and desflurane. ANIMALS: 12 healthy adult prairie rattlesnakes. PROCEDURES: In a randomized crossover design, snakes underwent anesthetic induction with 5%...

Year Published: 2020Topics: Anesthesia & SedationAnimal Type: Reptile, Snake

Citation: Kane, L. P., Chinnadurai, S. K., Vivirito, K. et al. 2020. Comparison of isoflurane, sevoflurane, and desflurane as inhalant anesthetics in prairie rattlesnakes (Crotalus viridis). Journal of the American Veterinary Medical Association 257(9), 945-949.

Evaluation of subcutaneous administration of alfaxalone-midazolam and dexmedetomidine-midazolam for sedation of ball pythons (Python regius)

OBJECTIVE: To evaluate SC administration of alfaxalone-midazolam and dexmedetomidine-midazolam for sedation of ball pythons (Python regius). ANIMALS: 12 healthy juvenile ball pythons. PROCEDURES: In a randomized crossover study, each snake was administered a combination of alfaxalone (5 mg/kg [2.3 mg/lb])...

Year Published: 2020Topics: Anesthesia & SedationAnimal Type: Reptile, Snake

Citation: Yaw, T. J., Mans, C., Johnson,S. et al. 2020. Evaluation of subcutaneous administration of alfaxalone-midazolam and dexmedetomidine-midazolam for sedation of ball pythons (Python regius). Journal of the American Veterinary Medical Association 256(5), 573-579.

Tortoise Husbandry and Welfare

Keeping captive tortoises healthy and well is a significant challenge. Because they are ectotherms, these reptiles are totally dependent upon external sources to maintain body temperature and therefore metabolic function. Their physical environment is vital for them to remain healthy,...

Year Published: 2024Topics: Emotion, Pain, & Sentience, Husbandry & Management, Natural Behavior, Social Housing & Companionship, Welfare AssessmentAnimal Type: Reptile, Turtle & Tortoise

Citation: Williams, J. 2024. Tortoise Husbandry and Welfare. CABI, 303 pages.

Social dynamics and behavior of zoo-housed red-footed tortoises at different housing densities

Within zoos, it is common for animals that are considered solitary to be housed with conspecifics. This may be due to a variety of factors such as spatial constraints within zoos, difficulties associated with transferring animals, breeding goals, and/or other...

Year Published: 2025Topics: Stocking DensityAnimal Type: Reptile, Turtle & Tortoise

Citation: O’Brien, S. L., Diaz, A., Cronin, K. A. 2025. Social dynamics and behavior of zoo-housed red-footed tortoises at different housing densities. Behavioural Processes 231, 105242.

Quantification of sea turtle swimming patterns using a standardized arena to minimize effort in welfare assessment

Welfare assessment of captive sea turtles has become increasingly important as the need for lifelong care grows. The most valuable indicator of sea turtle welfare is behavioral assessment, as it is non-invasive and more cost-effective than other methods such as...

Year Published: 2025Topics: Welfare AssessmentAnimal Type: Reptile, Turtle & Tortoise

Citation: Inoue, N. K. 2025. Quantification of sea turtle swimming patterns using a standardized arena to minimize effort in welfare assessment. Behavioural Processes 231, 105200.

Putting the evidence into evidence-based husbandry: A scoping review of empirical approaches to improving captive reptile welfare

Non-avian reptiles are commonly kept in captivity, including zoos, aquariums, farms, laboratories, classrooms, rehabilitation centres, and homes. With this wide range of captive conditions and potential diversity of species housed, it is crucial to ensure that these animals are housed...

Year Published: 2025Topics: Environmental Enrichment, Housing, Human-Animal Interaction, Husbandry & Management, Social Housing & CompanionshipAnimal Type: Crocodile & Alligator, Lizard, Reptile, Snake, Turtle & Tortoise

Citation: Hanson, S. L., Whittaker, A. L., Cooper-Rogers, B. et al. 2025. Putting the evidence into evidence-based husbandry: A scoping review of empirical approaches to improving captive reptile welfare. Applied Animal Behaviour Science 292, 106831.

Lizard anesthesia—A retrospective study of anesthetic protocol and monitoring quality of anesthetic episodes at a veterinary hospital over 23 years (2000–2023)

Objective This study’s aim was to summarize the anesthetic events of lizards seen at a university hospital, identify challenges with record-keeping, and assess anesthesia-related mortality. Methods From October 2000 through January 2023, medical records of lizards that underwent general anesthesia...

Year Published: 2025Topics: Anesthesia & SedationAnimal Type: Lizard, Reptile

Citation: Gise, B. T., Thorbrogger, C. J., Rasys, A. M. et al. 2025. Lizard anesthesia—A retrospective study of anesthetic protocol and monitoring quality of anesthetic episodes at a veterinary hospital over 23 years (2000–2023). Journal of the American Veterinary Medical Association 263(7), 904–913.