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
The elephant brain weighs about 6,000g.
274
Bats sleep 18-20 hours per day.
5
Denmark has twice as many pigs as there are people.
66
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
Sheep, goats, octopuses, and toads have rectangular pupils.
7
The seahorse is the only fish to have a neck.
12