Natural High: Animals that Use Drugs in the Wild

Locoweed

Locoweed, also known as Crazy Weed, is unsurprisingly a plant which causes odd behavior in animals. Locoweed is actually a group of plants which all cause similar effects—Locoism. When an animal gets Locoism, they wander aimlessly, show extreme lethargy, and salivate excessively. None of the effects of Locoism seem that pleasant, but it is apparently an addictive experience for horses. They just go crazy for Crazy Weed. Horses will seek out Locoweed because it is a very nutritious plant. Once they have tried it, however, they will continue to eat it. Just two weeks of eating Locoweed can cause depression, but the serious physical effects take longer. They begin to suffer weight loss, impaired movement, and loss of balance.