The researchers suggest that the difference between the long-haulers and those who landed might be in their feathers; the ...

More than 99% of birds can fly. But that still leaves many species that evolved to be flightless, including penguins, ...

Forbes contributors publish independent expert analyses and insights. I write about the world of biology.

Birds today make flight look effortless, but its evolution was complex. Scientists are still trying to discover exactly how birds took to the skies, and today, a new perspective has emerged by ...

Researchers examined dozens of bird species in museum collections looking for differences in the feathers and bodies between birds that can fly and birds that can't. They found that when birds evolve ...