Watch These Bears Mimic Each Other’s Facial Expressions
This week in science: sharing a womb with a twin brother could affect women's behavior, humans might be able to detect the Earth's magnetic field, and these bears do something we didn’t know bears could do.
The Twisted and Terrible History of Men Fighting Bears
Kangaroos aren't the only animals who have been forced to face human beings in combat. We take a look at the centuries-old history of men stepping into the ring – or cage – to fight bears.