The elephant brain weighs about 6,000g.
274
One in three dog owners say they have talked to their pets on the phone.
427
Squirrels forget where they hide about half of their nuts.
698
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
Cats recognise the voice of their owner, but never evolved to care.
22
Penguins have a gland above their eye that turns saltwater into freshwater.
12
Parrot parents "name" their children with a signature call.
112