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Canadians push the limits of cold endurance; baby harp seals brave icy waters; flying squirrels.
Rain brings unexpected benefits for spadefoot toads, grizzlies and whitewater kayakers but too much of it can be deadly.
Falcons, butterflies and spiders hitch a ride on the wind; Canadians harness and harvest the wind.
The sun is the driving force behind all weather; why blue whales and vultures depend on sunlight; sunlight is essential for training some extreme athletes.