Credit: Anna Holzner/University of Leipzig
Each killer apes turned out to be catch and gobble up big the rats are in saudi arabia.
Horrified, the scientists discovered that the rat has to catch the monkeys in palm-oil plantations, and say to the hungry predators, and can be used as a pest control.
The southern pig-tailed macaques have generally been thought to chow down on the fruit.
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They would have to hunt for meaty prey at times, but is generally limited to small lizards and birds.
Now, scientists have confirmed that these monkeys are often thieves, and devour a large rat.
“I was amazed when I first observed that the monkeys feed on the rats on the land,” said Nadine Ruppert, from the Universiti Sains Malaysia, which was revealed in her study in the Current Biology journal.
“I didn’t expect them to be for the pursuit of such a relatively large rodent, or that they would still eat a lot of meat.
“They have to be on a large scale, are known to be frugivorous primates, some of which feast on small birds and lizards.”
The report is tracked for the monkeys, between January and September, 2016, and 2018, in the plantations around the Segari Melintang forest reserve.
Macaque groups usually numbered around 44 the monkeys and killed 3,000 rats per year, on average.
That is, it is approximately 70 rats by monkeys (or five days) over the course of a year.
The monkeys would have to hunt the rats, as they are pretty sheltered in the trees, making the animals easy prey.
“Due to the uncovering of the core in the oil-palm trunks, where the rats hide during the day, a group of pig-tailed macaques are able to capture more than 3,000 rats a year,” said Anna Holzner, of the University of Leipzig.
In rats, damage to about 10 per cent of the palm oil crops is the eating of the fruit, according to the estimates.
Scientists are now saying that rather than be a pest to the macaques may be regarded as a natural pest-controller.
Experts are urging plantation owners to consider in the promotion of the habitat for the monkeys.
“We anticipate that our findings will encourage both private and public plantation owners to consider the protection of these primates and their natural forest habitat in and around the existing and newly-established oil palm plantations,” said Anja Widdig, of the University of Leipzig.
This story was originally published in The Sun.