Vanilla flavoring is sometimes made with an ingredient from beaver pee.
82
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 zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Condoms were originally made of animal intestines or linen.
347
The cat brain weighs about 30g.
167
Rattlesnake mating sessions have been known to last more than 22 hours.
232