While we’re enjoying the holiday season, nature’s most resilient creatures are celebrating survival in their own remarkable ways. Here are five “festive” animals that thrive in some of Earth’s toughest conditions:   Reindeer Their noses really do glow — filled with blood vessels that warm icy air as they breathe. Penguins Masters of teamwork, huddling together in freezing winds to conserve heat.   Camels The ultimate desert travellers, storing fat (not water!) in their humps to endure long journeys.   Christmas Island Crabs These bright red crabs migrate by the millions each December to lay eggs in the sea — a true natural celebration!   Namib Beetles  Desert survivors that collect water droplets from fog on their backs every morning. From...