Only 3% of bird species have penises.
0
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8
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).
12
Whales and dolphins can't taste anything other than salt.
11
The elephant brain weighs about 6,000g.
274
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34