One Super Predator in Africa Instills Even More Fear Than Lions

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One Super Predator in ******* Instills Even More ***** Than Lions

With their bladed paws, wielded by a rippling mass of pure muscle, sharp eyes, agile reflexes, and crushing fanged jaws, lions are certainly not a predator most animals have any interest in messing with. Especially seeing as they also have the smarts to hunt in packs.

“Lions are the biggest group-hunting land predator on the planet, and thus ought to be the scariest,” conservation biologist Michael Clinchy from Western University in Canada

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in 2023.

But in over 10,000 recordings of wildlife on the ******** savannah, 95 percent of the species observed responded with far more ******* to the sound of an entirely different ******. This animal

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. It’s us: humans.

We’re the monsters lurking under other mammals’ beds.

“The ***** of humans is ingrained and pervasive,”

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Clinchy. “There’s this idea that the animals are going to habituate to humans if they’re not hunted. But we’ve shown that this isn’t the case.”

In research published last year, Western University ecologist Liana Zanette and colleagues played a series of vocalizations and sounds to animals at waterholes in South *******’s Greater Kruger National Park and recorded their response.

This protected area is home to the world’s largest remaining lion (

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) population, so the other mammals are well aware of the danger these carnivores represent.

The researchers broadcast the sounds of human conversations in local languages, including Tsonga, Northern Sotho, English, and Afrikaans, as well as the sounds of human hunting, including barking dogs and gunshots. They also played the sounds of lions communicating with each other.

“The key thing is that the lion vocalizations are of them snarling and growling, in ‘conversation’ as it were, not roaring at each other,”

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Clinchy. “That way the lion vocalizations are directly comparable to those of the humans speaking conversationally.”

Not all of the experimental subjects appreciated the researchers’ efforts though.

“One night, the lion recording made this elephant so ****** that it charged and just smashed the whole thing,” Zanette

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, referring to the camera setup.

Seems like a fair response!

Almost all 19 of the mammal species observed in experiments were twice as likely to abandon the waterholes when hearing humans talking compared to lions or even hunting sounds. The mammals include rhinos, elephants, giraffes, leopards, hyenas, zebras, and warthogs, some of which can pose dangers in their own right.

But ***** of these creatures rarely stops us from deciding their fate. From taking down

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to tending the most

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we’ll take on any challenge.

As the

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and a

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, humans have sadly earned every heart-racing beat of ******* we instill in others.

“It was specifically hearing human vocalizations which inspired the greatest *****,” the team

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, “suggesting that wildlife recognize humans as the real danger, whereas related disturbances such as barking dogs are merely lesser proxies.”

Given how ubiquitous humans now are, escaping from us is only ever going to be a temporary situation, meaning that these mammals will unfortunately keep having their fears triggered.

This is not great for the already dwindling populations of many savannah species, including

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As the team’s

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continued ***** alone can reduce prey animal populations over generations.

But conservation biologists may be able to harness this knowledge to help these species, too. By playing human conversations in areas with known poaching in South *******, they hope to keep the endangered Southern white rhino safely away.

“I think the pervasiveness of the ***** throughout the savannah mammal community is a real testament to the environmental impact that humans have,”

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Zanette.

“Not just through habitat loss and

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and species extinction, which is all important stuff. But just having us out there on that landscape is enough of a danger signal that they respond really strongly. They are scared to ****** of humans, way more than any other predator.”

This research was published in

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.

An earlier version of this article was published in October 2023.

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