In modern birds, these bones are totally fused and, due to their length, are often mistaken for the lower legs. This gives birds their distinct—and misleading—"backward-facing knee" look.

The end of a terror bird’s left tibiotarsus, a lower leg bone in birds equivalent to that of a human tibia or shin bone, dates back to the Miocene epoch around 12 ...

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 ...

Evidence of avian beginnings has been elusive in the fossil record because birds' light, hollow bones rapidly decompose ... This odd, crow-sized creature had long legs and three toes tipped ...

Indian-origin astronaut, Sunita Williams is back on Earth, but it won't be the same for her. Read on to know the physical difficulties she would face after landing on Earth.

To determine this rate of decline, an international team of paleogenetisicts examined DNA samples from 158 leg bones belonging to three species of Moa, extinct giant birds from New Zealand. The bones ...