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 Komodo dragon, the largest species of lizard now alive ... by mating with a male and laying eggs. Or she can lay eggs without having mated, through a sort of virgin birth process called ...

This big egg belongs to an ostrich. Some animals, like lizards, lay much smaller eggs and much more of them. During sexual reproduction a sperm from the male joins with an egg from the female.

He said this time of year, it's common for people to find snake, turtle and lizard eggs on their property ... is that snakes usually don't dig to lay eggs; turtles do, which is why people ...