Discover why Newfoundland dogs are nature's ultimate water rescue machines in this fascinating pet behavior documentary. Watch how a Newfoundland instinctively jumped into freezing water to save a stranger's life without any training. Learn the incredible biological adaptations that make this breed built for water rescue: oil-resistant fur that stays dry underneath, webbed paws, massive lung capacity, and an automatic diving reflex that triggers when water hits their face. This amazing canine in