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萬物簡史(MP3+中英字幕) 第472期:生命在前進(14)

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Today some of Sprigg's original Ediacaran specimens, along with many of the other fifteen hundred specimens that have been found throughout the Flinders Range since that time, can be seen in a glass case in an upstairs room of the stout and lovely South Australian Museum in Adelaide, but they don't attract a great deal of attention. The delicately etched patterns are rather faint and not terribly arresting to the untrained eye. They are mostly small and discshaped, with occasional, vague trailing ribbons. Fortey has described them as "soft-bodied oddities."

今天,斯普里格的埃迪亞卡拉標本原件,與自那以后在整個弗林德斯山脈所發現的其他1500件標本中的許多標本一起,陳列在阿德萊德南澳大利亞州博物館樓上的一個玻璃柜里,但是沒有吸引多少注意力。上面蝕出的精美圖案不大清楚,對沒有受過訓練的人來說沒有多大吸引力,它們大多很小,呈圓盤形,偶爾帶有隱約的條紋。福泰把它們稱為“軟體怪物”。
sponge

There is still very little agreement about what these things were or how they lived. They had, as far as can be told, no mouth or anus with which to take in and discharge digestive materials, and no internal organs with which to process them along the way. "In life," Fortey says, "most of them probably simply lay upon the surface of the sandy sediment, like soft, structureless and inanimate flatfish." At their liveliest, they were no more complex than jellyfish. All the Ediacaran creatures were diploblastic, meaning they were built from two layers of tissue. With the exception of jellyfish, all animals today are triploblastic.

這些是什么東西,它們是怎么生活的,人們的看法遠非一致。從表面看來,它們沒有用來進食的嘴巴,也沒有用來排泄廢物的肛門,根本沒有用來消化食物的內臟器官。“在生活中,”福泰說,“它們大多數很可能就趴在砂質沉積物的表面,就像沒有固定形狀、毫無生氣、軟綿綿的比目魚那樣。”在最活潑的時候,它們也不會比水母更復雜。埃迪亞卡拉動物都是雙胚層的,即它們由兩層組織構成。除了水母以外,今天所有的動物都是三胚層的。
Some experts think they weren't animals at all, but more like plants or fungi. The distinctions between plant and animal are not always clear even now. The modern sponge spends its life fixed to a single spot and has no eyes or brain or beating heart, and yet is an animal. "
有的專家認為,它們根本不是動物,而更像是植物或真菌。即使現在,植物和動物的界線并不總是很分明。現代海綿一輩子固定在一個地方,既沒有眼睛,也沒有大腦,更沒有搏動的心臟,然而它是動物。

重點單詞   查看全部解釋    
discharge [dis'tʃɑ:dʒ]

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v. 放出,解雇,放電,解除,清償債務
n.

 
exception [ik'sepʃən]

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n. 除外,例外,[律]異議,反對

 
faint [feint]

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n. 昏厥,昏倒
adj. 微弱的,無力的,模

 
tissue ['tiʃu:]

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n. (生物的)組織,織物,薄絹,紙巾

 
internal [in'tə:nəl]

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adj. 國內的,內在的,身體內部的

 
arresting [ə'restiŋ]

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adj. 引人注意的;醒目的,有趣的 v. 逮捕(arr

 
range [reindʒ]

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n. 范圍,行列,射程,山脈,一系列
v. 排

 
vague [veig]

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adj. 模糊的,不明確的,猶豫不決的,茫然的

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original [ə'ridʒənl]

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adj. 最初的,原始的,有獨創性的,原版的

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inanimate [in'ænimit]

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adj. 無生命的

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