Happy birthday, polar bear cubs! Right now, mother polar bears with newborn cubs are snuggling in their snow dens. Cubs are typically born around New Years and are quite helpless, unable to see or hear with only one thin layer of fur to protect them from the cold. Maternity dens provide critical shelter to the fragile newborns, protecting them from the harsh Arctic environment. The mom and cubs will stay snuggled up in their dens for the next ~3 months, and will emerge around mid-March, once the