Drug lord Pablo Escobar's hippos have become an invasive species, befouling lakes: study
Drug lord Pablo Escobar's hippos have become an invasive species, befouling lakes: study
![](https://static.foxnews.com/foxnews.com/content/uploads/2020/02/Hippo-REUTERS.jpg)
Large wild hippos once owned by infamous drug lord Pablo Escobar have become an invasive species whose waste is wreaking havoc on Colombia’s aquatic ecosystem.
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