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The study of animal personality is a growing field that has applications for welfare of animals living in captive settings. We measured personality traits (activity, exploration, and neophobia) in Texas horned lizards (Phrynosoma cornutum) living in human care before they were released to their natal habitat as part of a headstart program. We found evidence of consistent inter-individual differences in activity and...

Intermediate metrics of translocation success are useful for long-lived, slow to mature species where survival and reproduction happen over decades. With fewer than 150 individuals in the wild, the Critically Endangered Philippine crocodile (Crocodylus mindorensis) is one of the most threatened species on Earth. This study presents the first analysis of diet and body condition of wild Philippine crocodiles and headstarted (i.e....

After a handful of weather-related delays, the Texas Horned Lizards (Phrynosoma cornutum) that have been raised at the Oklahoma City Zoo “Lizard Lab” for the last 1–2 years have just been released in small “soft release” pens (where they will remain for ~1 month). The juveniles were collected from Tinker Air Force Base as either eggs or brand-new hatchlings and raised in...

Animals often exhibit distinct microbial communities when maintained in captivity as compared to when in the wild. Such differentiation may be significant in headstart and reintroduction programs where individuals spend some time in captivity before release into native habitats. Using 16S rRNA gene sequencing, we (i) assessed differences in gut microbial communities between captive and wild Fijian crested iguanas (Brachylophus vitiensis) and...