Polar bear stretches from nap with its cub Arctic National Wildlife Refuge, Barter Island Kaktovik, Alaska © 2015 Debbie Tubridy / TNWA Photography
Polar bear cub plays with stick Arctic National Wildlife Refuge Kaktovik, Alaska © 2016 Debbie Tubridy / TNWA Photography
Polar bear cubs play tag on iceberg and in water Arctic National Wildlife Refuge Kaktovik, Alaska © 2016 Debbie Tubridy / TNWA Photography
