Natural High: Animals that Use Drugs in the Wild
The Black Lemurs of Madagascar use millipedes for protection against insects. They catch the large creepy crawlies and bite them. The poor millipede unleashes its chemical defenses which include all manner of offensive smelling compounds. This is exactly what the lemur wants, however, as it smears them all over its coat as a way to drive off insects and other parasites. That is one use of the millipede. A lemur that uses a millipede as an insect repellent also seems to get high from the experience. It drools, rocks back and forth, and rubs itself.