The extreme challenges of life in the polar regions require the animals who make their habitat there to make many adaptations. This free course, Animals at the extremes: Polar biology, explores the polar climate and how animals like reindeer, polar bears, penguins, sea life and even humans manage to survive there. It looks at the adaptations to physiological proceses, the environmental effects on diet, activity and fecundity, and contrasts the strategies of aquatic and land-based animals in surviving in this extreme habitat.
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