Colombia began the $10,000-a-pop sterilization of the nation's surprisingly descendants of animals illegally brought to the country by drug kingpin Pablo Escobar in the 1980s, this week. Two male hippos and one female underwent surgical sterilization, environmental authorities said. It is part of a larger government effort to control the population of 169 of the mammals that roam around unsupervised in some rivers.The plan includes the sterilization of 40 hippos a year, transfer some of them to other countries and possibly euthanasia.
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