A lion in the wild usually makes no more than twenty kills a year.
186
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
Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
12
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16