But, Bodil noticed, polar bear fur did not freeze after getting wet. "I was very puzzled," she says. "When they go into the water and out again, why do they not get covered in ice?" The work could ...

But, Holst noticed, polar bear fur did not freeze after getting wet. "I was very puzzled," she says. "When they go into the water and out again, why do they not get covered in ice?" The work could ...

But, Holst noticed, polar bear fur did not freeze after getting wet. "I was very puzzled," she says. "When they go into the water and out again, why do they not get covered in ice?" The work could ...