Men of the world are invited to pit their sperm against each other in a racy race where the owner of the swiftest swimmers ...

A new therapy has the potential to cure hundreds of diseases — and even reverse aging. Credit...Photo illustration by Kensuke ...

The quail is a small, unassuming bird that glides rather than flies and prefers to hide under bushes than to perch on top of ...

For most of their lives, plants get their energy from photosynthesis. But during the seed to seedling stage, when they can't ...