It would take about 1,200,000 mosquitoes to fully drain the average human body of blood.
217
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
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
Early American humans hunted car-size armadillos and used their shells for houses.
12
Penguins have a gland above their eye that turns saltwater into freshwater.
12
The head of a jellyfish is called the "Bell."
6