Dolphins have names for one another.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Only 3% of bird species have penises.
0
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
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