An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
A group of unicorns is called a blessing.
304
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
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
It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Alligators can live up to 100 years.
337
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12