User:Evabraud/Agamidae

Body temperature helps determine the physiological state of these lizards and affects their predator responses. There is a positive correlation between a flight response (running speed) and body temperature of various agamid species. At higher body temperatures, these lizards tend to flee quickly from predators, whereas at lower temperatures where they tend to have a reduced running speed and show an increased fight response, where they are more likely to be aggressive and attack predators.

Certain physical features of some lizards of these species, such as frilled-neck lizards, play a role in their defensive responses as well. During the mating season, males tend to display more of their frill, and give fight responses more often. Both males and females display their frill when they are threatened by predators, as well as during social interactions.