Whales and dolphins can't taste anything other than salt.
11
Cows can sleep standing up, but they can only dream lying down.
745
Cats recognise the voice of their owner, but never evolved to care.
22
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
Gorillas can catch human colds and other illnesses.
205