Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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The cat brain weighs about 30g.
167
A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
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In order to enhance the taste, Japanese macaque wash their food in salt water before they eat. They also make snowballs for fun!
7
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
109
Sheep, goats, octopuses, and toads have rectangular pupils.
7
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.
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