The researchers said in their findings published Monday in the Papers in Palaeontology journal that unique features about the leg bone suggest the bird is a previously undiscovered species ...

A fossil fragment indicates that the ancient predator was 20% more massive.

The main bone, the humerus, which is similar to the upper arm of a mammal, is hollow instead of solid. It also connects to the bird’s air sac system, which, in turn, connects to its lungs.

The leg bone also had marks that likely came from the teeth of an extinct crocodilian species, a Purussaurus, which grew up ...

Nabavizadeh is fascinated with the anatomy of extinct species “because it’s such a mystery! All we have are bones. A lot of my research has to do with reconstruction of musculature on the ...

While the specimen consists only of a fragmentary portion of a lower leg bone known as the left tibiotarsus, its size led the researchers to suggest that it may correspond to one of the largest ...

A team of archaeologists posit a unique theory about 12,000-year-old bird bones from the Levant, which appear to have been crafted into flutes.

Researchers have found evidence of a previously unrecognized soft tissue structure in the cheek region of many dinosaur species, which they've called the "exoparia." The finding deepens our ...

The fossil, the end of a 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 million years ago. The bone, with deep ...

It discusses how birds share common traits as vertebrates, such as hollow bones and a high metabolism, ... Birds: Parental Care and Anatomy - Coronet Films Documentary. Posted: March 21, ...