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
A cat rubs against people not only to be affectionate but also to mark out its territory with scent glands around its face. The tail area and paws also carry the cat's scent.
293
The seahorse is the only fish to have a neck.
12
A giraffe's kick is so powerful that it can decapitate a lion.
216
Some older/less efficient worker termites will develop 'backpacks' of toxic chemicals that explode when the termite is threatened. They are essentially used as suicide bombers when the colony is being attacked.
8
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23