A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Dolphins sleep with one eye open!
52
The most powerful electric eel is found in the rivers of Brazil, Columbia, Venezuela, and Peru, and produces a shock of 400-650 volts.
45
A pig's orgasm lasts for 30 minutes.
303
Dogs have four toes on their hind feet, and five on their front feet.
179
A killer whale's heart beats 30 times a minute under water, 60 times a minute on the surface.
30