Earth was once ruled by giant reptiles. Tyrannosaurus rex, the king of tyrant lizards, crushed bones. Spinosaurus hunted in ...

A tiny gecko had a big problem: squamous cell carcinoma. How the zoo's vets teamed up to save the creature and make history.

The life of a 166-million-year-old reptile has been turned upside down. While Marmoretta oxoniensis was believed to have swum ...

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and ...

Monitor lizards are found across much of Africa and Asia and include giants like the Komodo dragon. But what do monitor ...

We just made one of our wildest discoveries yet—a full nest of invasive monitor lizards hiding right in plain sight! These ...

Young tegus are emerald green with black markings and a tail that has yellow and black bands. Over several months and after ...