People think bears hibernate, but they actually enter a state called torpor. Learn more about these unique winter conditions.

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 ...

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 ...

You may think you've perfected the art of the wintertime nap - especially after a big holiday meal - but the true professionals are already seriously sacked out. Tucked beneath trees and dug deep into ...

Peter Stenvinkel receives funding from Astra Zeneca, Fresenius, Baxter, Novo Nordisk, Bayer, Invizius, Vifor for lectures and scientific advisory boards When the cold and dark winter is setting in, ...

When the cold and dark winter is setting in, some of us envy animals that can hibernate. This long, deep rest is an example of how nature develops clever solutions to difficult problems. In this case, ...