Sandy, an African Penguin, has been in 'love' with her keeper at the Nuremburg zoo since 1996.
34
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Only 3% of bird species have penises.
0
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A dairy cow can produce more milk when listening to music.
446
Cats recognise the voice of their owner, but never evolved to care.
22
There is a sea snail that wears a suit of iron plated armor. It is the only known animal to use iron sulphide as skeletal material.
9
Cats are one of the only animals to domesticate themselves and approach humans on their own terms.
20