Geckos and lizards may look similar, but they are not exactly the same. All geckos are a type of lizard, but not all lizards are geckos. Geckos have some special features like sticky toe pads to climb ...

Scientists studying the evolution of birth in lizards, from egg-laying to live births, have pinpointed the evolutionary genes from which the species is evolving to 'build' a new mode of reproduction.

The size, shape, and solidity of an egg can tell us a lot, but until we can see inside, there is still an opportunity for surprise. Unfortunately, when you have an ancient fossilized lizard egg, you ...

Sure, creatures that reproduce asexually get to avoid some of the hangups that come with sex, but the strategy brings its own problems. First and foremost, how do you prevent genetic deterioration ...

Despite their cold-blooded reputation, tegu lizards boost their body heat while on the prowl for a mate, biologists report January 22 in Science Advances. Like other ectotherms, South American tegu ...

Uromastyxs, commonly called spiny-tailed lizards, are native to North Africa, the Middle East, and Northern India. They are very popular as pets. This article explains some of their common ...