Cats recognise the voice of their owner, but never evolved to care.
22
The world's largest amphibian is the giant salamander. It can grow up to 5 ft. in length.
66
The original name for the butterfly was 'flutterby'!
121
A Giraffe has the same number of bones in its neck as a man.
36
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Dolphins nap with one eye open.
-7
A bird 'chews' with its stomach.
33
