Cats recognise the voice of their owner, but never evolved to care.
22
A species of earthworm in Australia grows up to 10 feet in length.
10
Apple seeds are poisonous!
27
There's a young hippo and a 130+ year old tortoise in a Kenyan wildlife preserve who are best friends and they even sleep and play together.
40
The sting from a killer bee contains less venom than the sting from a regular bee!
81
Rats multiply so quickly that in 18 months, two rats could have over a million descendants.
33
It's possible to lead a cow upstairs, but not downstairs.
50