Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
Denmark has twice as many pigs as there are people.
66
The reindeer is the only mammal that can see UV light.
17
Domestic pigs average a top speed of about 11 miles per hour.
182
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
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