The elephant brain weighs about 6,000g.
274
Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
2
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
A domestic cat can sprint at about 31 miles per hour.
274
A dairy cow can produce more milk when listening to music.
446
Macaques monkeys in Japan learned to steal purses and wallets, take out the coins, and use them to buy drinks and snacks from vending machines.
26
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14