A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
7
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
Dolphins have names for one another.
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