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 ...

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

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

Birds descended from the dinosaurs, but researchers have known relatively little about how the bird's brain took shape over ...

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

Researchers unearthed the skull of a previously unknown starling-sized bird species named Navaornis hestiae that was so well ...

The brains of today’s birds facilitate a level of cognitive prowess and behavioural complexity rivalled only by mammals. But ...

Conductive hearing loss usually due to problems in external ear; sensorineural hearing loss usually results from middle- or inner-ear disorders. Figure 1B. High-frequency sounds cause basilar ...