Basque, spoken in parts of Spain and France, is a language isolate with no known relation to any other language on Earth.

The framing effect shows how wording affects decisions.

Aztec markets like Tlatelolco impressed Spanish conquistadors — they rivaled the best markets in Europe.

Emoji are increasingly studied as a form of paralanguage — they provide emotional context to text.

The word 'OK' may be the most recognized word in the world — understood in virtually every language.

Body language accounts for 55% of communication, tone for 38%, and words for only 7% — according to Mehrabian's model (though this is often oversimplified).

Chimpanzees have shown the ability to learn sign language.

Jazz improvisation activates the brain's language areas — musicians effectively 'speak' through instruments.

There are more possible passwords of 8 characters than grains of sand on Earth.