Raccoons clear up puzzles for the enjoyable of it, new research finds

They raid compost bins, outsmart latches and generally look gleeful doing it. A new UBC study in Animal Behaviour suggests raccoons might not simply be opportunistic—they might be genuinely curious.

UBC researchers Hannah Griebling and Dr. Sarah Benson-Amram discovered raccoons continued fixing puzzles lengthy after retrieving the one meals reward obtainable. This behaviour displays intrinsic motivation relatively than starvation and is described as “information foraging,” as a result of no further meals was given for persevering with.

Nine methods in—and so they saved going

Researchers used a customized multi-access puzzle field with mechanisms comparable to latches, sliding doorways or knobs. The field had 9 entry factors, grouped as simple, medium and arduous. In Each 20-minute trial the puzzle field contained a single marshmallow, but raccoons typically continued opening new mechanisms after consuming it, a transparent signal of information-seeking.

“We weren’t expecting them to open all three solutions in a single trial,” stated Griebling. “They kept problem solving even when there was no marshmallow at the end.”

When threat rises, raccoons play it secure

When options have been simple, raccoons explored broadly, making an attempt a number of openings and ranging their order. As activity issue elevated, they favoured a reliable resolution—however nonetheless explored a number of options even on the hardest stage, exhibiting versatile problem-solving.

Griebling stated the sample displays a basic tradeoff between curiosity and energy or potential threat. Raccoons adjusted technique primarily based on perceived price and threat, mirroring decision-making frameworks in different animals and people.

“It’s a pattern familiar to anyone ordering at a restaurant,” she stated. “Do you order your favourite dish or try something new? If the risk is high—an expensive meal you might not like—you choose the safe option. Raccoons explore when the cost is low and quickly decide to play it safe when the stakes are higher.”

Built for city life

The findings assist clarify why raccoons thrive in city centres like Vancouver. Their success could possibly be attributed to the cognitive and bodily traits that go well with city life.

Their forepaws, wealthy with sensory nerves for foraging in streams, are properly suited to manipulating latches and handles—typically the identical sorts utilized by people. Solving issues for info, not simply meals, might give them a bonus in advanced environments, serving to them entry rubbish bins or different meals sources. Vancouver’s greenspaces, waterways and usually tolerant public present near-ideal habitat.

“Understanding the cognitive traits that help raccoons thrive can guide management of species that struggle, and inform strategies for other species, like bears, that use problem-solving to access human-made resources,” stated Griebling.

Although the experiment concerned captive animals at a analysis facility in Colorado, earlier analysis suggests wild raccoons present comparable problem-solving skills, although researchers warning the behaviours might not be an identical.

“Raccoon intelligence has long featured in folklore, yet scientific research on their cognition remains limited. Studies like this provide empirical evidence to support that reputation,” stated Dr. Benson-Amram.

Interview languages: English (Griebling, Benson-Amram)

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