Feb. 2 (UPI) --To hunt successfully, cheetahs must keep their head still and eyes focused on the movements of their prey while running at high speed. How does the fastest animal in the world do it?

A new study reveals the surprisingly convergent evolution in the inner ear of mammals. An international research team led by Nicole Grunstra from the University of Vienna and Anne Le Maître from the ...

Medically reviewed by William Truswell, MD Key Takeaways The cochlear nerve is part of the eighth cranial nerve and is ...

The first warm-blooded animals appeared abruptly 233 million years ago, according to clues hidden deep inside their ears. Before now, scientists estimated that warm-bloodedness, or endothermy, ...