Domestic pigs average a top speed of about 11 miles per hour.
182
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
In Australia, there are spiders big enough to eat snakes.
20
Crows living in some urban areas drop nuts into traffic to let the passing cars crush them, then they wait for the red lights to stop the traffic so they can grab and eat it.
17
When cats are happy, they may squeeze their eyes shut.
10
Sheep, goats, octopuses, and toads have rectangular pupils.
7
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212