Pablo Escobar’s Hippos May Be Changing Colombia’s Ecology

From:The Hunt for Escobar's Hippos

  • 1m 4s
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  • TV-PG

Hippos brought in by Pablo Escobar to Colombia in the late 1980s are now a full-fledged environmental menace. In one stretch of river, they appear to have driven out the local manatees.