These small feathers on top of birds’ wings lay flat during normal flight but flare up in turbulence during landing. By attaching flexible plastic strips – “covert flaps” – to the top of ...

"It's easier to change a small part of the wing than all of the wing. It could be that larger animals are less capable of ...

A team of researchers from Princeton University is exploring how feather-like flaps on aircraft wings could improve stability ...

Hedrick calculated the size of wings needed for humans and commented, 'I thought it was surprisingly small.' Fossil research has revealed that there may have been giant birds with wingspans of up ...