A grizzly bear c. 1955

The Scientist Who Wanted Grizzly Bears Eliminated

In the late 1960s, two highly visible deaths from grizzly bear attacks led to a debate about whether humans and bears could coexist.

Why Do Pandas Have Thumbs?

Some panda species have strange thumb-like appendages, but their thumbs evolved for strikingly different reasons.

The Mysteries of Hibernation

Bears in hibernation have a lot of physiological issues to solve.