Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
When you shave a guinea pig it looks like a little hippo.
19
Condoms were originally made of animal intestines or linen.
347
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57