The first known contraceptive was crocodile dung, used by Egyptians in 2000 B.C.
79
Cats and dogs can hear ultrasound.
350
Ants have tiny magnetic compasses in their antennae which help them navigate.
9
A dairy cow can produce more milk when listening to music.
446
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
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