A cow produces around 200,000 glasses of milk in her lifetime.
373
Cats recognise the voice of their owner, but never evolved to care.
22
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
The largest earthworm on record was found in South Africa and measured 22 feet.
151