From polar bears struggling on the shores of Hudson bay to orcas learning to hunt in the frigid Patagonian waters, the Americas are a proving ground that pushes all its animals to the max. Winter in the Americas can last six months and lock the land in millions of tons of snow. But a few winter specialists have found ways to survive this brutal season and make the most of every opportunity.

Asia, Earth’s largest continent, home to wildlife as varied as the landscape itself. But as winter locks the land in snow and ice, temperatures drop and the days grow dark. Many creatures migrate, or hibernate until spring...those left behind are at the mercy of the most unforgiving season. Every day is a fight for survival, pushing strength and resilience to the limit.

Europe’s winters are dark and deadly, temperatures plummet to minus 40 degrees, food is scarce; life is pushed to its absolute extremes. This hostile, white-covered world, sees only the toughest survive. Animals in these frozen lands are forced to employ surprising adaptations if they’re to flourish, with little choice but to adapt or die.