George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12