Video data to accompany manuscript: Toe-biting in captive Pogona vitticeps

In this note, we describe the rare behaviour of toe-biting observed in captive Pogona vitticeps. This behaviour occurred in individually-housed lizards in both juveniles and adults, and in rare instances, resulted in the loss of several toes. Toe-biting was associated with loose substrates, hot substrates, and periods of ecdysis. In form, this behaviour is similar to grooming behaviours noted in other lizards. However, the function of toe-biting is difficult to discern, as it is not consistently related to any particular stimulus, occurs rarely and quickly, and occasionally resulted in significant injury. We therefore suggest that toe-biting may function to clean the back toes, but may also have no function or be maladaptive.