By creating tech that lets dolphins play computer games and request belly rubs, we can understand their intelligence and perhaps even get a preview of life on other planets, says marine mammal researcher Diana Reiss.

Icelanders’ extreme efforts to keep their language pure extends to what people can call their newborns, but the days of these official name-keepers appear to be numbered.

“Words over time have a way of just oozing around,” says linguist John McWhorter. He traces the evolution of five words that have spent millennia drifting from one meaning into another.

What’s it like to have a song inside your head, itching to get out? A neuroscientist and a songwriter compare notes from the frontier of music and science.

Novelist Young-Ha Kim shares his secret for creative success: stop being reasonable and let your freak flag fly.

Writer Suzanne Talhouk on why speaking your mother tongue is about more than mere communication.

History professor Yuval Noah Harari, author of “Sapiens: A Brief History of Mankind,” explains why humans have dominated Earth. The reason’s not what you might expect.