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

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

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

Nine methods in—they usually saved going

Researchers used a customized multi-access puzzle field with mechanisms reminiscent of latches, sliding doorways or knobs. The field had 9 entry factors, grouped as straightforward, medium and onerous. 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,” mentioned Griebling. “They kept problem solving even when there was no marshmallow at the end.”

When threat rises, raccoons play it protected

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

Griebling mentioned the sample displays a basic tradeoff between curiosity and energy or potential threat. Raccoons adjusted technique based mostly 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 mentioned. “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 swimsuit 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 data, not simply meals, might give them a bonus in complicated environments, serving to them entry rubbish bins or different meals sources. Vancouver’s greenspaces, waterways and customarily 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,” mentioned Griebling.

Although the experiment concerned captive animals at a analysis facility in Colorado, earlier analysis suggests wild raccoons present comparable problem-solving talents, although researchers warning the behaviours is probably not equivalent.

“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,” mentioned Dr. Benson-Amram.

Interview languages: English (Griebling, Benson-Amram)