A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Parrot parents "name" their children with a signature call.
112
Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Domestic pigs average a top speed of about 11 miles per hour.
182
The seahorse is the only fish to have a neck.
12
There are approximately three chickens for every human on Earth.
13