When did they learn to do this!
The study, published Tuesday in the Canadian Journal of Zoology, tracked 52 female polar bears in the southern Beaufort Sea off Alaska. Between 2004 and 2009, a period of extreme summer-ice retreat, about a third of those bears made swims exceeding 48 kilometres in distance, according to the study results.
The 50 recorded ultra-marathon swims averaged 155 kilometres, and one bear was able to swim nearly 354 kilometres, according to the study results. The duration of the long-distance swims lasted from most of a day to nearly 10 days.
I blame the overcrowding.
h/t Mike



