BEAR PAW PRINT IN SNOW LICENSE
BEAR PAW PRINT IN SNOW FREE

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BEAR PAW PRINT IN SNOW LICENSE

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BEAR PAW PRINT IN SNOW FREE

So extra-grippy pads could help polar bears make the most of what they’ve got, Orndorf says.Īlong with bumpy pads, the team hopes to study polar bears’ fuzzy paws and short claws, which might also give the animals a nonslip grip.This license extends our regular Royalty Free / Editorial license to an unlimited number of seats within the same organization. Smaller pads generally mean less real estate for grabbing the ground. Polar bear paw pads are also ringed with fur and are smaller than those of other bears, the team reports, adaptations that might let the Arctic animals conserve body heat as they trod upon ice. Orndorf et al/ Journal of the Royal Society Interface 2022 Rough bumps on the pads of polar bears’ paws (pictured) offer the animals extra traction on snow.

Until now, scientists didn’t know that bump shape could make the difference between gripping and slipping, Dhinojwala says. That extra height translates to more traction on lab-made snow, experiments with 3-D printed models of the bumps suggest.

For a given diameter, their bumps tend to be taller, the team found. But the polar bears’ bumps looked a little different. Orndorf teamed up with Dhinojwala and Austin Garner, an animal biologist now at Syracuse University in New York, and compared the paws of polar bears, brown bears, American black bears and a sun bear. Nathaniel Orndorf, a materials scientist at Akron who focuses on ice, adhesion and friction, was interested in the work Dhinojwala’s lab did on geckos, but “we can’t really put geckos on the ice,” he says.

Bear paw print in snow