drug lord Pablo Escobar, have been sterilised.Escobar illegally imported a range of exotic animals during his crime spree, including a male and female hippo, commonly known as the "cocaine hippos".A growing population of hippos have been taking over the countryside near his former ranch since their arrival as they procreated with each other.
Escobar was killed by Colombian National Police in his hometown a day after his 44th birthday in 1993.The Colombian government have now sterilised 24 of more than 80 animals that were illegally imported by the former drug lord, making them infertile.
A chemical has been administered to the creatures that will make them infertile, BBC reports. Environmentalists in Colombia have claim the creatures are.
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