These are grapes. Yes, really.

It looks a lot like a dark-purple ristra, but this bundle of elongated pods is in fact made up entirely of grapes. They're called "witches fingers," and of you're in the U.S. they could be coming to a grocery store near you, and with them a variety of other weird grapes. » 8/08/13 9:30am 8/08/13 9:30am

Genetic evidence reveals that polar bears originally came from Ireland

Every polar bear alive today shares a common maternal ancestor, and it isn't even a bear from the same species. Their mitochondrial DNA reveals a 100,000 year story of interbreeding and hybridization...and the story is far from over. » 7/07/11 2:00pm 7/07/11 2:00pm