![]() One of the photographs of a boa eating a howler monkey adorned the cover of the American Journal of Primatology, of which Garber is the executive editor. The present study was conducted by Bicca-Marques and his student Erika Patricia Quintino. A study earlier this year, for example, found evidence of a leopard eating a chimpanzee. Other recent studies have found heretofore-unknown examples of primate predation. "Being a solitary monkey is definitely not a good thing," Garber said. It's possible that the monkey might not have been eaten if it had stayed closer to the group. "According to observations on predation attempts on howler monkeys made by other researchers, howlers often don't do anything to defend the victim," Bicca-Marques said. Seventy-six minutes later, after strangling the monkey to death, the snake ate the howler headfirst. But the snake showed no reaction, and the other monkey soon withdrew, watching the macabre affair. ![]() Īfter the snake struck, the victim's companion approached the snake and hit it a handful of times. The Boa Constrictor is taking its time in this longer version I'm being eaten by a boa constrictor I'm being eaten by a boa constrictor I'm being eaten by a boa constrictor And I don't like it very much. ![]() The study suggests that "snakes may play a stronger role as predators of New World monkeys than previously thought," he told LiveScience. In this case, the howler likely didn't see the snake, said study lead author Júlio César Bicca-Marques, a researcher at Pontifical Catholic University of Rio Grande do Sul. Most adult female howler monkeys weigh about 13 pounds (6 kilograms), according to the International Union for Conservation of Nature. Typically boas eat smaller prey, such as rodents and small birds. The snakes have been known to lurk in one place without moving for more than a month, according to the study. The attack was typical of boa constrictors, which crouch and wait for prey. Without warning, a hidden boa struck at the monkey, wrapping the primate in the muscular coils of its body and crushing it. In this incident, which occurred in the western Brazilian Amazon, an adult female Purús red howler monkey ( Alouatta puruensis) was seen climbing away from its group of five other monkeys, trailed by another adult female in the rain forest canopy. But sometimes the group's defenses are not enough.
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