cocaine hippos

Pablo Escobar's 'Cocaine Hippos' To Be Sterilized By Colombian Government
Some of the hippos, whose population has grown to about 170, will instead be relocated or euthanized.
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Pablo Escobar's Invasive 'Cocaine Hippos' To Be Relocated To Continents Around The World
Though researchers have suggested the drug lord's animals may be restoring the local ecosystem, they are still considered an invasive species.
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