Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17
Squirrels forget where they hide about half of their nuts.
698
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
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
The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
492