Cats recognise the voice of their owner, but never evolved to care.
22
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Whales and dolphins can't taste anything other than salt.
11
The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
8
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5