Hummingbirds are extremely small but remarkably tough. Some species make migrations of more than 9,000 km (about 5,590 miles) ...

Hummingbirds use torpor to survive long migrations when food is scarce. Researchers found that they regulate fat reserves ...

A team led by researchers at Georgia State University has identified a novel group of neurons controlling the brain-heart-gut ...

Tundra and Banks are six-year-old Alaskan Coastal Brown Bears who live at the Lake Superior Zoo. Though in the Winter we don’t see much of them as they’ve gone into torpor. Each bears weighs about a 1 ...