Domestic pigs average a top speed of about 11 miles per hour.
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The ancestor of all domestic cats is the African Wild Cat which still exists today.
12
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
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Urechis unicinctus is a species of marine spoon worm that is widely referred to as the ‘penis fish’.
2