A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
When dragonflies mate, their tails form a love heart.
22
A dairy cow can produce more milk when listening to music.
446
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A banana slug can be 6-8 inches and their erect penis can be just as long. Also, their penises emerge from their heads. After sex, banana slugs eat each others penises.
17
Bats sleep 18-20 hours per day.
5
Dogs have been man's pet for over 14,000 years.
224
Honeypot ants are a unique insect that use their own bodies as living storage pots of honey.
4