The cat brain weighs about 30g.
167
When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
25
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
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 you shave a guinea pig it looks like a little hippo.
19