“It was unbelievably cold and shocking,” Polar Bear Jumpers Ella Kornaga and Julie Hawkins said laughing. “Thanks everybody who donated for us to be able to do this for this awesome cause.

They then compared the performance of polar bear hair with human hair and two human-made ski skins. A polar bear’s insulating fur shown under infrared heat imaging taken with a FLIR E75 24o ...

Editor's Note: National Geographic went too far in drawing a definitive connection between climate change and a particular starving polar bear in the opening caption of our December 2017 video ...