Quick Take Like the Ancient Greek warriors from which its name derives, the Amazon molly is an all-female fish species that ...

Just because a female olive baboon has mated with a specific male doesn't mean he will be the father of her offspring.

The cellular biology of reproduction is often depicted as an epic journey, in which millions of intrepid sperm fight to be the first to claim the ultimate prize: the chance to fertilize the egg, which ...

An unsung appendage in the female body, which has long been considered useless, may actually be essential for ovary development and fertility, a new mouse study finds. This structure, called the rete ...

The hectocotylus is both a reproductive organ and a sensory organ, a rare combination in animals, new research suggests ...

A new UC Davis study reveals previously unknown cell types in the female reproductive tract of Drosophila fruit flies. The knowledge could help in studies of fertility in general, and in managing ...

Deep in the rain‑drenched forests of southern India, scientists climbed into old tree holes expecting to find tiny freshwater ...