Animals can hibernate, slowing down most metabolic functions — heart rate, blood flow, brain activity, and body temperature — ...

Science fiction is shifting into reality. With humanity’s plans to return to the Moon this decade and further ambitions to travel to Mars in the next, we need to figure out how to keep astronauts ...

"Black bears don't enter true hibernation - they go into a lighter state called torpor," WRAM explained. "In torpor, a bear's ...

Winter is finally here, and bears are getting ready to find a den to hibernate in over the next few months. In Wyoming's Yellowstone National Park, one bear was caught prepping for his long sleep by ...

Whether we’re night owls or morning larks, our body clocks are set by the sun. Theoretically, changing day length and light exposure over the course of the year could affect the duration and quality ...

Every spring, as days in the north stretch longer and melting snow trickles into streams, drowsy animals ranging from grizzlies to ground squirrels start to rally from hibernation. It’s tempting to ...

Editor’s Note: The views expressed in this commentary are solely those of the writers. CNN is showcasing the work of The Conversation, a collaboration between journalists and academics to provide news ...

We often see documentaries or videos of alligators floating in the water with their eyes and nostrils out, sneakily waiting for prey. Sometimes, these alligators are sleeping or just relaxing and ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...