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 ...

To understand the structure of the cochlear nerve, it's best to start with the anatomy of the ear. Your ear has three main ...

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

You may hear crackling or popping in your ear if you have a middle ear infection, an issue with your eustachian tube, or another condition affecting the jaw or ear. Treatment depends on the ...

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 ...