Discover how black bears, raccoons, and opossums survive Michigan’s frost — through torpor, denning and foraging.

There's many pieces about how your teeth can tell you a lot about the rest of your body. For example, poor oral hygiene can contribute to problems like heart issues. That's why it's important to ...

Gears are mechanical devices made up of disks with teeth (“cogwheels”) that mesh with each other. A cogwheel is mounted on a central axis of rotation with many other cogwheels on the outside, and ...