Sloths take two weeks to digest their food.
243
Cats recognise the voice of their owner, but never evolved to care.
22
During World War 1, starving wolves amassed in such great numbers that Germans and Russians had a temporary cease fire to fight off the wolf attacks.
45
Unsinkable Sam (nickname of a German ship's cat) who served on 3 warships, one German, two British, all sank in action. The cat survived each sinking, floating away on wooden planks to rescue.
19
A 42-foot sperm whale has about 7 tons of oil in it.
209
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1