Dolphins can rapidly heal from extreme injuries, such as shark bites, and regenerate their original body shape.
19
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
Parrot parents "name" their children with a signature call.
112
A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
13
A zoo in China gave a gay penguin couple the opportunity to raise a chick.
11
A koi fish, named "Hanako", was owned by several individuals over many years and lived to be 226 years old, dying in 1977.
6