RFK Jr. is one of the most prominent faces in the Kennedy family tree. But how is he related to the other famous names?

Wisdom, a 74-year-old Laysan albatross, is the world's oldest known wild bird. She also just became a mother yet again.

There's no conclusive evidence, but a river reputed by some to be the oldest in the world dates back 340 million years.

The latest two minute news summary from BBC World Service.