The reindeer is the only mammal that can see UV light.
17
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
15% of snails survive digestion by birds and are found alive in their droppings, potentially leading to the spread of snail populations.
1
The elephant brain weighs about 6,000g.
274