The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Squirrels will sometimes adopt orphaned baby squirrels that they’re related to.
12
All pandas are ‘owned’ by China. They rent them out to zoos for $1mil/year each with minimum of 10 years.
16
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10
The cat brain weighs about 30g.
167
The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
8