15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
Cows can sleep standing up, but they can only dream lying down.
745
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
Cats recognise the voice of their owner, but never evolved to care.
22
Only 3% of bird species have penises.
0