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回復 6# zero01
謝版主惠顧。表面上看是這樣，但地上，地下都有著奇奇怪怪的動物。最神奇的是pupfish in Devil's hole.Ice age時,valley 還在一大湖下，隨著地理，氣候變化，湖早幹了，分成不同小水域,同祖的魚在不同環境中一代代活下來，種好像也變了。多不容易啊.
In Death Valley, things are never quite as they seem. Beneath its parched surface lies one of America's largest aquifer systems. Rare access into this astonishing, water-laden underworld brings viewers into a secret realm. Here, a team of biologists works to protect the critically endangered Devil's Hole pupfish, a species that has lived in this watery cavern since the last Ice Age.
When summer temperatures spike to 120 degrees, it's difficult to imagine Death Valley in an ice age. But twenty thousand years ago, the valley rested beneath a vast lake system where the ice-age ancestors of these pupfish swam. As the climate warmed, the lake dried and formed separate pools, and the fish that were once part of the same parent population began to develop unique characteristics in response to their individual environments, eventually evolving into several distinct species of pupfish.
"This is the only place on the planet where this fish exists naturally," says Zane Marshall, head diver for the Devil's Hole Pupfish Recovery Team. "Scientists have estimated that it has been in isolation here in excess of 25,000 years." |
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狗仔卡
提升卡
置頂卡
沉默卡
喧囂卡
變色卡
搶沙發
。 racing rocks 是不是石頭會自己跑的地方？
樓主
這個季節去還是不錯的.
