When the Colombian drug lord Pablo Escobar was killed in 1993, a lot of the animals he had imported as pets — zebras, giraffes, kangaroos and rhinoceroses — died or have been transferred to zoos.
However not his 4 hippopotamuses. They thrived. Maybe a bit too nicely.
Officers estimate that about 170 hippos, descended from Mr. Escobar’s unique herd, now roam Colombia, and the inhabitants might develop to 1,000 by 2035, posing a critical risk to the nation’s ecosystem.
This month, after years of debate about what to do with the voracious herbivores, Colombian officers introduced a plan to sterilize some, probably euthanize others and relocate some to sanctuaries in different nations. On Friday, one official stated that 4 hippos — two grownup females and two juvenile males — had already been surgically sterilized.
“We’re in a race towards time by way of everlasting environmental and ecosystem impacts,” Susana Muhamad, Colombia’s environmental minister, stated in a press release.
Colombian officers describe the hippos as an aggressive and invasive species with no pure predators.
Mr. Escobar introduced the primary 4 to his lavish property, Hacienda Nápoles, within the Eighties as a part of a wild animal menagerie he used to entertain visitors.
Mr. Escobar’s son, Juan Pablo Escobar, wrote in a e-book, “Pablo Escobar: My Father,” that his father traveled within the early Eighties to a wildlife breeding middle in Dallas, the place he negotiated a deal to have the animals delivered to his property. Hacienda Nápoles additionally had an airstrip, swimming swimming pools and a 1,000-seat bull ring.
After Mr. Escobar was killed in a rooftop shootout with safety forces in Medellín in 1993, his hippos fended for themselves. They waddled into a man-made pond and reproduced, drawing affection and ire as their numbers multiplied.
The animals, for higher or worse, grew to become recognizable mascots in Colombia, memorialized in sculptures, together with one in every of an enormous pink hippo named Vanesa that greets guests to Mr. Escobar’s former property, which has been changed into a theme park.
In the USA, the information media has much less nobly referred to them as “cocaine hippos.”
A searching social gathering that included Colombian troopers, hoping to cease the hippos from spreading past Mr. Escobar’s property, shot and killed one named Pepe in 2009. The hunt prompted a public outcry, fueled by the publication of a photograph of the troopers posing with the useless hippo. A decide in Medellín later suspended the hunt for Pepe’s mate and their offspring.
Ms. Muhamad blamed 30 years of presidency inaction for permitting the hippos to multiply removed from their native habitat in sub-Saharan Africa. She stated that 130 to 150 stay within the Magdalena River, Colombia’s principal river.
The federal government’s purpose is to sterilize 40 hippos a yr.
However sterilizing a hippo shouldn’t be like spaying or neutering a cat.
Hippos can weigh greater than three tons and spend most of their days wallowing within the water, so that they’re best to seize at night time. Specialists stated they’re usually tranquilized with a dart and bear surgical procedure wherever they land. In the event that they run into the water after being hit with a dart, they may drown, consultants stated.
“This process could be very harmful because the veterinarian have to be very expert to sterilize it within the shortest time doable, earlier than it wakes up,” stated Germán Jiménez, a biologist on the Pontifical Javeriana College in Colombia.
The hippos may be lured right into a paddock baited with greens, the place it may be simpler to function on them, stated Jonathan Shurin, an ecologist on the College of California, San Diego, who has researched the results of the hippos on water high quality in Colombia.
“Getting them sedated ready the place you may work on them is the toughest half,” Dr. Shurin stated, including that the endeavor is “not for amateurs.”
Colombian officers say every sterilization will value about 40 million pesos, or roughly $10,000, and would require a group of eight individuals, together with veterinarians, technicians and assist employees.
Ms. Muhamad stated the federal government was additionally growing an “moral euthanasia protocol,” however didn’t say what number of hippos may be focused or by what technique.
Andrea Padilla, a Colombian senator and animal rights activist, stated she supported the plan, so long as it didn’t name for killing wholesome hippos. Euthanasia must be a final resort, she stated, “primarily in circumstances of sick animals whose struggling warrants it.”
“The essential factor is to behave shortly and successfully” in sterilizing as many hippos as doable, she stated, transferring others to sanctuaries and confining the inhabitants.
Dr. Shurin stated that it will be “way more efficient and humane” to manage the inhabitants when it’s small than when it’s massive and may require intensive searching.
“It’s led to a number of robust feelings and tempers on each side,” he stated. “I believe the plan they’ve come out with could be very affordable and smart, and also you’ll be capable of see if it really works when you don’t see child hippos round.”
Researchers have warned that the hippos, if left unchecked, might displace different mammals, akin to manatees and capybaras, and that the massive quantity of waste they produce might alter aquatic ecosystems, resulting in dangerous algal blooms. Because the hippos unfold, they may additionally come into extra frequent contact with individuals.
In April, Aníbal Gaviria Correa, the governor of the Colombian area of Antioquia, posted a photograph on social media of a useless hippo in a highway after it was hit by a automobile. He implored Ms. Muhamad and Colombia’s president, Gustavo Petro, to expedite the relocation of what he known as “these majestic animals.”
Ms. Muhamad stated the federal government was in talks to have a number of the hippos relocated to sanctuaries in Mexico, India and the Philippines.
Dr. Jiménez expressed considerations concerning the plans outlined up to now, saying they “aren’t sufficient to manage” the exploding hippo inhabitants. If the hippos aren’t eradicated solely, he stated, Colombia should think about “residing with this species completely.”
