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科学家发现奇异海洋昆虫化石

lzy 于2017-08-14发布 l 已有人浏览
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科学家发现奇异海洋昆虫化石
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Scientists found a prehistoric ancestor of an arrow worm among a group of fossils at two national parks in Canada.

科学家们在加拿大两个国家公园的一组化石中发现了一种箭虫的史前祖先。


The fossils were found in what is now British Columbia, but was once an ocean.


这些化石发现于如今的不列颠哥伦比亚,曾经这里是一片海洋。


The sea worm was 10 centimeters long and had 50 spines on its head.


这种海洋昆虫有10厘米长,头上有50根体刺。


The spines could close suddenly to capture smaller sea creatures, like shrimp.


这些刺可以突然收拢,捕捉比它更小的海洋生物,如虾。


The scientists reported their discovery in the journal Current Biology in early August.


科学家们在八月初将他们的发现发表在了《当代生物学》杂志上。


They are calling the creature Capinatatorpraetermissus.


他们将该生物称为Capinatatorpraetermissus。


They say it lived 500 million years ago and is very different from anything alive now.


他们表示该昆虫生活在5亿年前,和如今存活的昆虫大为不同。


Capinatator means "grasping swimmer."


Capinatator是指“紧紧抓住游泳者”。


Derek Briggs is a scientist from Yale University.


德里克.布里格斯是耶鲁大学的科学家。


He led the expedition.


他领导了这次研究工作。


He said the creature was larger than today’s similar worms.


他说这种生物比如今类似的昆虫大。


The arrow worms of today have teeth instead of spines.


如今的箭虫有牙齿,没有体刺。


Briggs said the worm was probably a good predator because it had so many spines.


布里格斯还表示,这种昆虫也许是优秀的捕食者,因为它有很多体刺。


The scientists said it is difficult to find evidence of these prehistoric worms because their bodies decayed so quickly.


科学家们表示,很难发现这些史前昆虫的存在证据,因为它们的尸体腐化地非常快。


But this discovery was in such good shape, they were able to make a good guess about how the worm looked.


但这次发现中,该昆虫的形状还保存完好,他们能够准确猜出这种昆虫长什么样子。


Researchers were able to make a detailed drawing and an animation of how they think the worm moved in the ocean.

研究人员能够进行细致的绘画还原,并用动画模拟他们所认为的该昆虫如何在海洋中活动。


Doug Erwin works for the Smithsonian Institution in Washington, D.C.


道格.欧文在华盛顿史密森学会工作。


He was not involved in the research.


他没有参与这项研究。


He said the discovery will help scientists better understand the worms and other life from this ancient period.


他说这次发现将帮助科学家们更好地了解古代这类昆虫以及其他生命形式。


I’m Dan Friedell.


丹.福瑞尔德为您报道。

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