This ancient bird has a modern tail bone.

The evolution of different ways of flying in birds affected wing range of motion, but not wing shape.

The birds also decrease their heart rate and chill their blood to maintain flight in hypoxic conditions.

Carbon dioxide pumped into a bright chamber mimics a breathing host for the pest to target.

Developers made an insect-like robot with two pairs of wings.

Watch a hawk close in on a target.

Paleontologists find a fossil of a dinosaur, Ambopteryx longibrachium, with membranous wings, in China.

A robot model of a winged but flightless dinosaur suggests the dinosaur may have flapped its wings while moving on the ground.

High-tech imaging of the Jurassic creature’s humerus and ulna bones reveals it flapped its wings to evade predators.