When you shave a guinea pig it looks like a little hippo.
19
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9
The seahorse is the only fish to have a neck.
12
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
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6