Some lizards, in which the tail is a major storage organ for accumulating reserves, will return to a dropped tail after the threat has passed, and will eat it to recover part of the sacrificed supplies.
13
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
Sloths take two weeks to digest their food.
243
When dragonflies mate, their tails form a love heart.
22
The most expensive cow in the world was sold in 2009 for $1.2 million.
-3
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12