Scientists from Denmark and Hungary have studied the circadian rhythms of trees and discovered that many of them are poor sleepers. But why is this so?
Brown bears are obese. They have to be to survive months of hibernation. And yet they do not experience the complications that we do when we pile on the pounds. So what can they teach us?
South American oilbirds combine echolocation and extremely sensitive vision to find their way through dark caves. Decoding how they do this could help develop autonomous drones.
