The jaguar enjoys hallucinagons, they sharpen the ability to hunt and, who knows, the munchies?

Do check out the Jaguar video.  Maybe humans should be less uptight.  Here's the blurb:

Jaguars are the junkies of the jungle. Looking for a high, these big cats will seek out the roots of the banisteriopsis caapi plant and gnaw on them until they start to hallucinate. Caapi root contains a variety of powerful MAOIs (chemicals akin to those found in antidepressants), which heighten the animal’s senses and make them extremely high. Some scientists believe that humans learned how to use the root by observing jaguars getting high off of them.

And then the Wacky Wallabies:

In the summer of 2009, farmers in Tasmania unmasked the culprit behind a batch of crop circles. Aliens? Hardly. The crop-stompin’ was sourced back to something far more logical—stoned marsupials. Wallabies were caught eating opium poppies grown for medicinal purposes, which made them carve out crop circles as they hopped around high as a kite. The country produces half of the world’s legally-grown opium. “They would just come and eat some poppies and they would go away,” said retired Tasmanian poppy farmer Lyndley Chopping, to the Australian Broadcasting Network. “They’d come back again and they would do their circle work in the paddock.”