Do you know why blue-footed boobies have blue feet? Author Laura Erickson does, and you’ll find the answers to this and many ...

Humans don't have hollow bones like birds do, so how big would our wings have to be to lift us off the ground?

A fleshy membrane wing would cover these limbs. But to actually fly, the rest of our body would have to produce enough power, which would require strong muscles. In birds, an average of 16% to 18% ...

including bird flu. At the same time, separate uncooked poultry from other foods, cooked or not, as you prepare those Super Bowl platters. For example, don’t place raw meat next to the celery sticks ...

The wings of some species flap up to a hundred ... Marc Badger of UC Berkeley elicits such acrobatics in the lab by having birds fly through small apertures, a situation the photographer re ...

and they weren't necessarily flying with closely related species or birds that shared their preferences for specific habitats. "Species with similar wing sizes were more likely to associate ...