Do Rare Males Retain Reproductive Function? While most animals reproduce sexually, some species rely solely on females for parthenogenetic reproduction. Even in these species, rare males occasionally ...

Add Yahoo as a preferred source to see more of our stories on Google. Getting the job done. A female Asian water dragon (Physignathus cocincinus) produced a daughter (left) without the assistance of a ...

If God exists and has a gender she’s definitely a woman,” says biologist Rodrigo Marques Lima dos Santos, excited when he see what lizards – or rather female lizards – manage to do. Several species of ...

Genetic diversity is essential to the survival of a species. It’s easy enough to maintain if a species reproduces sexually; an egg and a sperm combine genetic material from two creatures into one, ...