PUNTA ARENAS, Chile — A humpback whale briefly swallowed a kayaker off Chilean Patagonia before quickly releasing him unharmed. The incident, caught on camera, quickly went viral. Last Saturday ...

Endless Thread sits down with journalist Ben Smith to discuss the private group chats shaping American politics.

Freeze–thaw cycles in an icy pond could let an enzyme copy RNA double helices indefinitely — suggesting one way in which evolution could have begun.

The Haenyeo divers of the Korean island of Jeju have a genetic variant linked to pain tolerance, as do other people living on Jeju.