Lizards are becoming extinct in many places, and scientists who have studied them say it is because of rising temperatures. The heat affects reproduction. "The results were clear. These lizards need ...

In Arizona, spotting a lizard is as common as finding sunscreen in your glovebox. These scaly little sunbathers love soaking up the heat and if you catch one doing push-ups, don’t worry, it’s not ...

This story appears in the November 2017 issue of National Geographic magazine. The Komodo dragon, the largest species of lizard now alive, can grow to 10 feet long and nearly 200 pounds. A muscular ...

Neil Heideman received funding from the University of Stellenbosch. Joaquín Verdú Ricoy does not work for, consult, own shares in or receive funding from any company or organization that would benefit ...