這是《動物王國大探險展》森林生態區的大貓熊導覽。在此聆聽這隻以竹子為生的熊科動物，如何在雲霧竹林中求生。
上方可播放導覽語音。逐字稿與語音內容相同。
This is the giant panda stop in the forest gallery of the Animal Kingdom Grand Adventure Exhibition. Listen here to how this bamboo-eating bear lives in the clouded groves.
Play the narration above. The transcript matches the audio.
走進雲霧繚繞的高山深谷，穿越茂密的竹林，這是熊貓棲息的綠色家園。
大熊貓雖然主食是硬梆梆的竹子，但在生物學分類上，牠們可是貨真價實的「食肉目熊科」成員。之所以放棄吃肉，是因為在400多萬年前，負責感受肉類味道的基因發生了突變，讓肉類不再吸引熊貓。雖然牠們改吃素已經數百萬年，但至今仍保留著肉食動物的消化道，這也降低了對竹子的消化率，為了不讓自己餓死，他們一天需要花10幾個小時進食，其餘時間就是睡覺來節省能量。
為了適應高纖維飲食，大熊貓自身的腦部獎勵機制也發生了變化。研究發現，當牠們咀嚼竹子時，大腦會分泌多巴胺，產生類似人類吃高脂高糖食物時的愉悅感。這種生理機制，搭配牠們極為靈敏的嗅覺，讓大熊貓不僅能把清淡的竹子當成美味佳餚，還能精準地在叢林中搜尋到最營養、新鮮的竹筍與嫩葉。
大熊貓用無數個演化上的折衷與妥協，證明了生命在適應特殊環境時，所展現出的不可思議力量。
Walk into the cloud-wrapped mountain valleys, through dense bamboo, and you are in the green home of the panda.
Though bamboo, hard as it is, is the giant panda's staple, in biological classification they are true members of the order Carnivora, family Ursidae. They gave up meat because, more than four million years ago, the gene that tastes meat mutated, and meat no longer drew them. They have eaten plants for millions of years, yet they still keep a carnivore's gut, which also lowers how well they digest bamboo. To keep from starving, they spend more than ten hours a day eating; the rest of the time they sleep to save energy.
To live on a high-fiber diet, the giant panda's own brain reward system changed too. Research has found that when they chew bamboo, the brain releases dopamine, a pleasure close to what humans feel with high-fat, high-sugar food. That physiology, paired with an extremely keen sense of smell, lets them treat mild bamboo as a feast, and hunt down the most nourishing, fresh shoots and tender leaves in the forest.
Through countless evolutionary compromises, the giant panda proves the improbable force of life when it meets a special world.