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

The reproductive biology of reptiles encompasses a wider range of strategies than is often assumed in general accounts of the ...

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