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
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
There's a rare breed of pig that looks like a sheep.
14
Ants tend to survive in a microwave because they find the coolest spot and wait!
17