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
A group of pugs is called a grumble.
10
Jellyfish as a species are actually older than dinosaurs and sharks.
383
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6