Learn how researchers tested a cow’s behavior and what her tool use reveals about animal intelligence.

Learn about a new UN report that suggests we are now in an era of global water bankruptcy that cannot be reversed.

Learn how the shingles vaccine puts the brakes on aging by helping the immune system fight chronic inflammation.

Learn about J1007+3540, a black hole that has recently come back to life and is described as a “cosmic volcano.” ...

Learn how the body’s earliest immune defenses can stop a common cold before symptoms appear.

Learn how a decade of monitoring reveals why Antarctic penguins are breeding earlier than ever, and what those shifts may ...