University of Manchester scientists have discovered significant concentrations of microplastics in the male reproductive ...

In contrast, the subject of female reproductive organs, even in snakes, has long been considered “taboo,” says University of Adelaide graduate student Megan Folwell, a coauthor of the study. The ...

Snakes are exclusively carnivorous, meaning that they only eat other animals — and in some cases, eggs. Their diets range ...

Reptile reproduction also depends on temperature ... It determines how many hatchlings will be male or female. Young reptiles can glide, walk, and swim within hours of birth.

An egg-laying lizard found in the hills of southeastern Australia controls the sex of its young through the size of its eggs, suggesting that female reptiles may actively dole out yolk to fine-tune ...

And if they're insects, or fish, or birds, or reptiles ... For example, one female frog can produce thousands of eggs! After sexual reproduction in mammals (including humans), the female grows ...