Exploring Earth's Most Extreme Climates | Hostile Planet Season 1 MEGA Episode | National Geographic

Mountains Oceans Dive beneath the surface of Earth’s dynamic oceans to uncover the extreme conditions to which animals must constantly adapt. Polar The poles — the Earth’s most frigid habitats — are home to the ultimate survivalists, evolving to combat the intense hostility of their homes. Grasslands Grasslands are home to the biggest stars of the animal kingdom, but top billing doesn’t make life here any easier as they battle volatile environments.

Courtesy of National Geographic on YouTube. Watch on YouTube ↗

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