A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
An alligator can go through 2,000 to 3,000 teeth in a lifetime.
268
The seahorse is the only fish to have a neck.
12
Cats sleep for 70% of their lives.
8
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9
Sharks, like other fish, have their reproductive organs in their chests.
248