Spotted a lizard doing push ups? Here's why they do it and why they don't get tired of doing it.

The urge to chow down during moments of high stress apparently transcends species. A study published late last month found that Colorado checkered whiptails respond to loud noises and related ...

SOUTH CAROLINA — Officials have documented the first confirmed sighting of a black and white tegu lizard, a non-native species that can have a detrimental impact on the state’s wildlife. The female ...

A student saw an elusive animal sleeping on a trail in Malaysia and discovered the first female Drogon’s false garden lizard ever recorded. Photo from Zijia Hong, shared by Evan S. H. Quah As the ...

A team of researchers at the University of Tasmania working with a colleague from the University of Canberra has found that a species of lizard can switch from female to male prior to birth. In their ...

Most nature lovers know that the more colourful a male fish, reptile, or bird, the more likely it is to attract a female and to have healthy offspring. Females, on the other hand, tend to be drably ...

A lizard from Tasmania is the first non-egg-laying animal known to sometimes switch sexes before birth, depending on the surrounding temperatures. Some egg-laying fish, frogs and reptiles hatch with ...