Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
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Dolphins have names for one another.
18
The male seahorse carries babies and 'gives birth' to them instead of the female.
7
Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
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
Bats sleep 18-20 hours per day.
5