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Stream the full Mammals Season 1 Episode 5 movie online for free in crystal-clear HD quality. No downloads required—just press play and enjoy the action, complete with English subtitles for an enhanced viewing experience.

With fur designed to keep you warm, keeping cool is never going to be easy, yet mammals are found in the hottest, driest places on earth such as Australia's barren outback, where they have found remarkable ways to stays cool, find water, and beat the heat.