Kristen C. French

Their lithium gave them away

Pretty tough to be a fish 70 million years ago

Diminutive wrens go big

Over the past two decades, right-wing ideology has become associated with less trust in medicine—and poorer health

Fossil records reveal Earth’s mass extinctions are followed by a rise of ocean cephalopods. They’re rising again.

With NASA recently detailing its plans for a lunar settlement, here’s a look at how that concept has taken shape through history