Dogs have been man's pet for over 14,000 years.
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A zoo in China gave a gay penguin couple the opportunity to raise a chick.
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When a male honey bee climaxes during sex, his testicles explode and then he dies.
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Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8