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
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20
The elephant brain weighs about 6,000g.
274