Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Only 3% of bird species have penises.
0
When Koko, the gorilla famous for knowing sign language, was asked where gorillas go after death, she responded by signing “Comfortable hole, bye.”
23
The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
10
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23