Reptile eggs are an interesting area of study, but what makes the distinction between snakes and lizards regarding their eggs ...

Reptiles exhibit remarkable reproductive diversity, with many species giving birth to live young rather than laying eggs.

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 ...