A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
When cats are happy, they may squeeze their eyes shut.
10
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
Parrotfish make themselves a kind of mucus 'sleeping bag' which masks their smell from predators and keeps parasites away.
4
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
A domestic cat can sprint at about 31 miles per hour.
274