In a clip from the BBC episode of "Peculiar Potions,” a jaguar appears to be experiencing the hallucinogenic effects of yage (Banisteriopsis caapi), a vine that contains harmaline and other beta carbolines.

Jaguars are not the only ones who enjoy the effects of the vine's leaves. B. caapi is also used by natives of the Peruvian rainforest during ritual ceremonies involving ayahuasca. In addition, the plant is used as a purgative to cleanse the body of parasites and help the digestive tract. 

Watch the jaguar munch on the hallucinogenic leaves below.