這是《動物王國大探險展》森林生態區的棕熊導覽。在此聆聽溫帶森林裡這位冬眠者，如何成為生態的守護者。
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This is the brown bear stop in the forest gallery of the Animal Kingdom Grand Adventure Exhibition. Listen here to how this hibernator of the temperate forest becomes a guardian of the ecology.
Play the narration above. The transcript matches the audio.
在北半球的溫帶森林，微風中傳來了松針葉的清香與陣陣溪流水聲，這裡是熊的家。
大家都知道熊會冬眠，但其實牠們不會一路昏睡到春天，冬眠只是儲存能量，降低代謝和心率，在危急時刻依然能甦醒防衛，恢復驚人的戰鬥力。熊在冬眠中能將代謝產生的尿素回收，重新合成肌肉蛋白質，整個冬眠期都可以不飲食、不排泄。特別的是，母熊會在完全不吃不喝的冬眠中完成分娩，並在睡夢中分泌富含高能量脂肪的乳汁哺育幼熊，直到春天甦醒。
雖然熊的體型龐大，但衝刺起來的速度甚至比短跑選手還要快；而擅長水性的熊，游泳速度更能輕鬆擊敗奧運游泳冠軍。
熊不只會捕獵動物，也會吃昆蟲與植物，牠們採集果實後，還會透過糞便將種子散播到數公里外，而在挖掘泥土尋找根莖與昆蟲的過程中，會大面積翻鬆森林土壤，促進泥土裡的養分循環，這樣的天性也使牠們成為森林生態的守護者。
In the temperate forests of the Northern Hemisphere, a light wind carries the scent of pine needles and the sound of a stream. This is the home of the bear.
Everyone knows bears hibernate, but they do not sleep straight through to spring. Hibernation is a way to store energy, slow metabolism and heart rate; in a crisis they can still wake, defend, and recover a startling fighting force. In hibernation a bear can reclaim urea from metabolism and rebuild it into muscle protein, going the whole season without eating or eliminating. In particular, a mother bear can give birth in a fast of complete hibernation, and in her sleep secrete milk rich in high-energy fat to nurse the cubs until she wakes in spring.
Though the body is huge, a bear's sprint can outrun a track athlete; a bear at home in water can swim past an Olympic champion with ease.
Bears do not only hunt animals; they also eat insects and plants. After they take fruit, they spread the seeds kilometers away in their dung. Digging for roots and insects, they turn forest soil over a wide area and help nutrients cycle through the earth. That nature makes them guardians of the forest ecology.