Airplane wings are modeled after bird wings. The bones and muscles of the wing are also highly specialized. The main bone, the humerus, which is similar to the upper arm of a mammal, is hollow ...

The team measured the wing and leg bones of 111 bat species and 149 bird species from around the world. Their dataset included X-rays of museum specimens and about a third of the new X-rays of bat ...

When vertebrates moved onto land, long ago, some of them eventually became airborne, way after the insects did. There are ...

Evidence of avian beginnings has been elusive in the fossil record because birds' light, hollow bones rapidly decompose ... But the creature also had wings and bore feathers -- certainly birdlike ...

Unlike bird and insect (and aeroplane) wings, bat wings have very little stiffness. They consist of a very flexible membrane of skin stretched across jointed bones which have a low mineral content ...