Black Bear Biology

August 19, 2013

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These newborn cubs weigh seven to 11 ounces (200 to 300 grams). By six weeks of age, cubs weigh about four to seven pounds (two to three kg). Newborn cubs are altricial (helpless at birth). Their eyes are closed, and they are covered with fine, down-like fur. To find out how they soon grow into 300-pound omnivores, check out the whole section on bear biology. And don’t miss the other bear educational links too.

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