這是《動物王國大探險展》沙漠生態區的駱駝導覽。在此聆聽牠如何在極度缺水的沙丘上，以獨特的身體構造跨越灼熱的荒原。
上方可播放導覽語音。逐字稿與語音內容相同。
This is the camel stop in the desert gallery of the Animal Kingdom Grand Adventure Exhibition. Listen here to how this animal crosses burning dunes of extreme drought with a body built for scarcity.
Play the narration above. The transcript matches the audio.
滾燙的熱浪席捲著無邊無際的沙漠，在水資源如此缺乏的環境裡，駱駝卻能悠然自得地跨越灼熱的沙丘。
牠們的抗旱秘密，並不是把水分存在駝峰裡，那裡儲存的其實是提供能量的固態脂肪。真正幫助駱駝撐過嚴重缺水的，是血管裡獨特的「橢圓形紅血球」，即使身體極度脫水導致血液變得黏稠，這些紅血球依然能壓縮自己、順暢地通過微細血管以維持血液循環。
此外，牠們的鼻腔就像一台強效除濕機，呼氣時，肺部的熱氣碰到冰冷的鼻腔壁，將氣體裡的水分凝結成水珠重新吸收，光是呼吸就能攔截、並回收高達六成的流失水分。到了白天，駱駝甚至能主動調高體溫，用類似「慢性發燒」的方式拉近身體與環境的溫差，從根本上杜絕排汗，將失水量降到物理極限。
這些由長期演化而來的特殊身體構造，讓駱駝能輕鬆地馳騁沙漠，成為寂靜沙漠中最頑強的生命奇蹟。
A scorching heatwave rolls across the endless desert. In a land so starved of water, the camel still crosses the burning dunes at an easy pace.
Their secret against drought is not water stored in the hump. What sits there is solid fat, a store of energy. What truly carries the camel through severe dehydration is a distinctive oval red blood cell. Even when the body is so dry that the blood thickens, these cells can still compress themselves and slip through the finest vessels, keeping circulation going.
Their nasal cavity is like a powerful dehumidifier. On the exhale, hot air from the lungs meets the cold nasal wall; moisture in the breath condenses into droplets and is taken back in. Breathing alone can intercept and reclaim as much as sixty percent of the water that would otherwise be lost. By day, the camel can even raise its own body temperature, using a kind of slow fever to close the gap with the air around it, shutting down sweating at the root and driving water loss down to a physical limit.
These long-evolved structures let the camel range the desert with ease, the most stubborn miracle of life in the silent sands.