Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
When the "Elephant Whisperer" Lawrence Anthony died, a whole herd of elephants arrived at his house to mourn him.
25
Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
The colossal squid has the largest eyes in the world.
4
The Pistol Shrimp can snap its claws together to create a sound of 218 decibels, louder than as supersonic jet at full speed. It only lasts for 1 millisecond. The snapping action also creates a bubble that is greater than 5000 Kelvin, close to the surface temperature of the sun.
21
An average cat has 1-8 kittens per litter and can have 2-3 litters per year. During her productive life, one female cat could have more than 100 kittens. A single pair of cats and their kittens can produce as many as 420,000 kittens in just 7 years.
10
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212