New findings add a surprising twist to the already complex mechanism that determines whether reptile embryos develop to be males or females. An egg-laying lizard found in the hills of southeastern ...

Q. When we studied high school biology, our teacher said more than 99 percent of animals lay eggs and only a few give live birth. That percentage seems too high. Humans, dogs, cats and cows are ...

MT. HAMILTON — Authorities here are asking the public to be on the lookout for a large, black and white egg-eating lizard last seen at Joseph D. Grant County Park. The Argentine black and white tegu ...

A couple of decades ago, in my herpetology class at the University of Georgia, we were discussing evolutionary ecology and someone asked the age-old question, “Which came first, the chicken or the egg ...

Lizards are those chill, scaly buddies that dart across rocks, climb walls, or just lounge in the sun. They comprise over ...

Jars of tiny platypus and echidna specimens, collected in the late 1800s by the scientist William Caldwell, have been discovered in the stores of Cambridge's University Museum of Zoology. Jars of tiny ...

Whether you refer to them as horned frogs, horny toads or by their official name — the Texas horned lizard — there's a chance you may know these native reptiles. Your grandkids, however, might not.