A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6
Dogs have been man's pet for over 14,000 years.
224
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
The seahorse is the only fish to have a neck.
12
The oldest recorded elephant lived for 82 years.
213
Cats recognise the voice of their owner, but never evolved to care.
22