Princeton engineers found a way to help airplanes avoid stall with lightweight plastic flaps that flutter with pressure ...

They can climb onto other animals to drink their blood, pluck insects from leaves or hover to drink nectar from tropical ...

Modern airplanes are inspired by birds but Princeton researchers find one aspect, we have not used so far and it could help ...

The technology echoes bird biology, specifically covert wing feathers that birds use when landing or facing turbulent winds.

If you ever sit in an airplane row overlooking a wing, then you probably notice multiple flaps along its edges that adjust ...

White Pelicans. Photo by Karen Lebing. Over 170 bird species were spotted during the recent main session of the 26th annual ...

Postdoctoral researcher Girguis O. Sedky  sitting inside of the wind tunnel, showing the covert feather-inspired flaps attached to the 3D-printed model airplane wing. The flaps deploy automatically in ...

They found that the changes in cicada wings coincided with birds evolving the ability to catch bugs in mid-flight. To survive, the cicadas had to fly fast enough to escape being caught and eaten.