Joel wanted to investigate the effect of the bears on musk oxen behaviour – and with no polar bear to call on – he improvised. He grabbed a polar bear costume and headed north. This interview was ...

For a long time, Dmitry Kokh had dreamed about photographing polar bears. That’s a lofty goal for a wildlife photographer but the way he sees it, if you devote so much time to an activity, your goals ...

“Here is the largest land mammal of the polar zones, but we hardly know anything about musk oxen,” said Joel Berger, a wildlife biologist at Colorado State University and a senior scientist at the ...