For years, researchers have questioned who created the “band of holes” site in Peru. A new study suggests it was an ancient marketplace.

Today’s wolves and dogs share a common ancestor. But a deeper look at their genes reveals that interbreeding since dogs were domesticated 20,000 years ago hasn’t been as rare as scientists assumed.

BBC Persian has received dozens of accounts from inside Iran. Defiant despite potential repercussions, the witnesses said they wanted to ensure the rest of the world knew of the violence against the protesters.