Only 3% of bird species have penises.
0
A domestic cat can sprint at about 31 miles per hour.
274
Alligators can live up to 100 years.
337
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Queen ants have one of the longest life-spans of any known insect - typically up to 30 years. Western harvester ant queens can live up to 40 years!
2
Leonardo Da Vinci loved animals so much that he used to buy caged animals at the market just to set them free.
57
Christmas Island has bridges for crabs to stop them getting run over during the mass migration.
9