Hyenas that think outside the box solve problems faster

Aug 08, 2012
MSU researchers show that hyenas must think out of the box to solve puzzles. Photo courtesy of MSU

Innovative problem solving requires trying many different solutions. That's true for humans, and now Michigan State University researchers show that it's true for hyenas, too.

The study, published in the current issue of the , presented steel puzzle boxes with inside to wild in Kenya. To get the meat, the hyenas had to slide open a bolt latch. Even though most of the animals had many opportunities to open the box, only nine out of 62 hyenas succeeded. The successful hyenas tried more solutions, including biting, flipping or pushing the box, than the ones that failed, said MSU zoology graduate student Sarah Benson-Amram.

Another requirement for success was not being afraid to approach new things. The wild hyenas had never seen a steel puzzle box before. And those hyenas that quickly contacted the box when they first saw it were more successful solving the problem than those hyenas that were slower to approach it. Although contacting unknown objects can be quite dangerous for , this research shows that risk-taking also has some benefits.

Surprisingly, one trait that did not necessarily lead to victory was persistence, said Benson-Amram.

"While those who gave up quickly were more likely to fail, some hyenas that spent more time with the puzzle box appeared to get stuck in a rut and would often try the same solutions over and over again," she said.

Like humans and other , hyenas have relatively large brains, said Kay Holekamp, MSU and co-author of the paper.

"A likely benefit of large brains is the ability to think flexibly about new situations and come up with solutions to novel problems," said Holekamp, co-principal investigator at the BEACON Center for the Study of Evolution in Action.

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More information: Hyena paper

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Milou
5 / 5 (1) Aug 08, 2012
Just proves hyenas have the same type of boxes that we have!!! I was not aware risk taking was an out-of-the-box process. I though "thinking" was the more necessary requirement. I guess that is why I am not n hyena?

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