Hippopotamus

"Cocaine hippos" have already spread about 100 kilometers from their original home.

An excerpt from the article 26 facts about Hippopotamus
Each season, their number in the Magdalena River basin grows more and more. Since residents of Medellin and the surrounding area have already become accustomed to their proximity, Cocaine hippos have become a local tourist attraction. The authorities do not consider the presence of hippos a problem. However, in the future, when their population grows to 400-500 animals, they could threaten the survival of other animals that forage in the same places.