Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
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
A group of pugs is called a grumble.
10
In 1955, the citizens of São Paulo were so upset with their government that they elected a rhinoceros named Cacareco (meaning rubbish) to the city council in protest, with over 100,000 votes.
18
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
A 42-foot sperm whale has about 7 tons of oil in it.
209