Ключевые слова: animal behavior, animal conservation, animal habitat, animal in repose, animal resting, animal sleep, bear behavior, bear biology, bear conservation, bear den, bear ecology, bear habitat, bear hibernation, bear in hibernation, bear in the cave, bear in the wild, bear nap, bear protection, bear resting place, bear sanctuary, bear shelter, bear sleeping, bear snooze, bear species, cave, cave dwelling, cave environment, cave exploration, cave retreat, cozy den, natural sleep, nature, natures beauty, natures rest, peaceful sleep, serene wildlife, wildlife, wildlife conservation, wildlife habitat, wildlife observation, wildlife photography, wildlife preservation, wildlife sanctuary,