Dolphins have names for one another.
18
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
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
The CIA once spent $20 million on a cat equipped with gear to spy on the Soviets, but it was hit by a taxi.
328
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9