Here's where the Arizona candidates stand on the issues in a congressional district that includes parts of Phoenix, ...

Discover the origin and purpose of the structures of living things, from why baboons have swollen bottoms to the ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

SINGAPORE – In an era when many Singaporeans stop at one or two children, a small group of parents are heading in the opposite direction with five or more. Their ranks remain modest but steady, even ...

Symbiotic interactions of microorganisms are widespread in nature, and support fundamentally important processes in diverse areas of biology that range from health and disease to ecology and the ...