There’s a bonobo named Kanzi who has learned to build a campfire and cook his own food.
8
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
The reindeer is the only mammal that can see UV light.
17
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
16
When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
5
The largest breed of rabbit is the Flemish Giant.
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