A tiny skull found on a beach in Devon has rewritten the early history of lizards, snakes and the tuatara, the last survivor ...

Researchers report the discovery of the oldest known lizard ancestor in England, a tiny Triassic reptile with oversized teeth.

Biodiversity is disappearing at an alarming rate and is driven by human activity: contamination, greenhouse gases and extreme ...

The colorful, venomous and mysterious Gila monster flourishes in the scorching Desert Southwest, but climate change threatens ...

Guillette, L. J., J. and Hotton, Nicholas, III. 1986. "The Evolution of Mammalian Reproductive Characteristics in Therapsid Reptiles." In The Ecology and Biology of ...

Heat and cold reshape fertility in reptiles, from scrambled sperm to sex reversal, with lessons for evolution under climate ...

Tropical cyclones have been dangerous and deadly even in the time of giants but paleontologists turned to some of the ...

Zookeepers at a west-central England zoo are celebrating a "virgin birth" after a female iguana birthed eight hatchlings ...

A 242-million-year-old fossil found on a beach in Devon, England, is changing what we know about lizard evolution. A new study, published in Nature, details how this ancient reptile is giving ...

Something remarkable is happening with the little brown lizards that have taken over the urban landscape of New Orleans. They ...

"When we confirmed the eggs were fertile without any contact with a male, our jaws hit the floor," a U.K. zoo director said ...

A female casque-headed iguana produced live hatchlings even though she has never shared an enclosure with a male ...