A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
It has been estimated that a bite from a grizzly bear can crush a bowling ball.
11
Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
Denmark has twice as many pigs as there are people.
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A group of kittens is called a "kindle".
10
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109