A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Dolphins have names for one another.
18
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Giant Anteaters' front legs look like a panda.
48
Only 3% of bird species have penises.
0
Sharks have been on the planet longer than trees.
14
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268