Medically reviewed by John Carew, MD The ears are a pair of sensory organs whose primary functions are hearing and balance.

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

The ossicles move the sound to the inner ear, which sends signals to the brain. Amazing. Sadly, we can't go beyond the eardrum and see all that inner goodness, because we don't want to puncture it.

A unique fossil discovery in Brazil provides new insights into bird brain evolution, while a study highlights drastic ...