National Geographic : 1987 Aug
Storming to the rescue, a cow rushes to confront a hungry grizzly (below) that barreledout of the bush in pursuitof her calf (left) as she was browsing nearby. Without her intervention (right)the four-week-old calf would have joined grim statistics:Of a hundred calves born each spring in eastern Denali National Park,85 to 90 die by autumn. Many suc cumb to bears, the rest to wolves or natural accidents. While a mature moose can outrun a bear or occasionally repel one with antlers, a calf has no defenses, though it can swim from birth and will take to water when in danger. Staying close to mother-preferablyright underneath her-offers the best chance for survival.