The eustachian tube connects the middle ear to the upper throat and nasal cavity. It's lined with mucous and helps regulate pressure around the eardrum so that sound waves can be transferred. Ears can ...

The temporal bones are two bony structures that shape the sides and base of the skull (cranium). They are located to the side of (lateral to) the temporal lobes of the brain’s cerebral cortex. The ...

A well-preserved skull fossil of a new bird species discovered in Brazil helps scientists understand the evolution of modern ...

The brains of today's birds facilitate a level of cognitive prowess and behavioral complexity rivaled only by mammals. But ...

A unique fossil discovery in Brazil sheds light on avian brain evolution with the skull of the bird Navaornis hestiae.

Paleontologists in Brazil unearthed a remarkably preserved fossil of a bird species named Navaornis hestiae, dating back 80 ...

Navaornis exhibits some unique characteristics like a vestibular apparatus, the organ of balance in the inner ear, larger than in any other known bird. "There was a significant gap (in the fossil ...

A newly discovered dolphin species from 22 million years ago shows evidence of early echolocation, akin to modern dolphins' ...