Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Nicole Kidman is scared of butterflies.
65
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
Mosquitoes prefer certain blood types, and people with the “O” blood type are more likely to get bitten.
12
The elephant brain weighs about 6,000g.
274
There's a lizard known as the 'Jesus Lizard' that can run across water.
11