The secret songs of giant beavers
Giant beavers, which vanished from North America about 10,000 years ago, had a secret in their heads: a long compartment that stretched from front to back in the animals’ skull. Caroline Rinaldi, a paleontologist who studies extinct mammals, may have figured out the chamber’s purpose.
Read more at Science News for Kids. My article is adapted from an original Science News article by Susan Milius.