In reptiles, a simple temperature change can determine whether an egg develops into a male or female. This process is ...

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 ...

Many lizards and insects shed their skin as part of their growth. Molting is essential as they grow larger and older, and it ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Geckos would ...

House lizards may seem like fleeting shadows on the wall, but behind their silent presence lies a carefully chosen nesting strategy. These reptiles instinctively search for warm, undisturbed corners ...

Every identifiable group of plants and animals on Earth has a unique combination of body shapes, behaviors and ecology that distinguishes them from all others. What about the different kinds of ...