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In islands that have been isolated from south east Asia for 60 million years, creatures found nowhere else in the world have evolved. One such species, the Nicobar megapode incubates its eggs in a remarkable way by burying them in a gigantic mound of compost and sand. The rotting vegetation keeps the temperature up so the eggs will hatch and the megapode regulates it by kicking off some of the mound if it gets too hot.