a bear in hibernation during winter retreats to a secluded den

adaptability adaptation adaptations amphibian background beautiful camouflage captivating carnivore challenging collection conditions conserving depending dramatically energysaving environment environments excellent experience formation freshness gathering hibernate hibernating hibernation hibernator highlighting incredible insulation invertebrate landscape landscapes metabolism minimizes monochrome mythology occasionally perfectly protection recognized reflection remarkable resilience resilient resourceful scavenging screenshot sculpture seamlessly sheltered showcasing snowcovered strategies streamlined strikingly surrounded temperature temperatures undefined undergoes underground underwater waterbird waterfowl welladapted wellsuited whitecoats wilderness