They don't call them "Ursus maritimus" for nothing: Polar bear allegedly swims for 232 consecutive hours without dying even once

Bear sets record swimming feat | The Sun |News

A POLAR bear has notched up an extraordinary achievement — by swimming non-stop for more than NINE days.

The bear covered 426miles (687km) during the record swim — which scientists say could have happened because of climate change.
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Research zoologist George M. Durner said: "This bear swam continuously for 232 hours and 687km and through waters that were 2-6 degrees C.