Some feathered dinosaurs like Anchiornis huxleyi may have lost the ability to fly, revealing that the evolution of flight was ...

For centuries, scientists have observed that animals in warmer climates have longer limbs—a pattern known as Allen's Rule. Long attributed to the need to maintain body temperature, the precise ...

Bats are incredibly diverse animals: They can climb onto other animals to drink their blood, pluck insects from leaves or hover to drink nectar from tropical flowers, all of which require distinctive ...

New research has found that, unlike birds, the evolution of bats' wings and legs is tightly coupled, which may have prevented them from filling as many ecological niches as birds. New Cornell ...

A New History From Their Dinosaur Origins To the Present. I will never forget my first dinosaur wing. I was a college s ...

It has taken more than 20 years to extract, assemble and interpret a mysterious find from a famed marble quarry about 50 miles north of Milan, Italy. Now, with the investigation finally complete, ...

Geographic and phylogenetic sampling of avian wing-bone morphology. Using measurements from 7366 skeletal specimens, we analyze variation in wing-bone length across 1520 bird species, representing ...