Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
The reindeer is the only mammal that can see UV light.
17
Using a remote-controlled camera, biologists caught dolphins getting high by sucking on puffer fish. They were even caught passing the puffer fish around.
23
When Washoe, the first chimp to use sign language, was told that her caretaker's baby had died, she signed "CRY."
20
The ancestor of all domestic cats is the African Wild Cat which still exists today.
12