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龙鱼的牙齿为什么是透明的?科学家解开这个谜团

kira86 于2019-06-14发布 l 已有人浏览
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龙鱼是生活在深海中的一种长相可怕的鱼类,它们的牙齿锋利且透明。一直以来,它们的牙齿为什么是透明的都是一个迷,不过科学家名表示他们找到了答案。
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Solved: Dragonfish Transparent Teeth Mystery

解开龙鱼透明牙齿之谜

Dragonfish live deep down in the dark ocean, and are frightening-looking creatures.

龙鱼生活在深海之中,是一种长相可怕的生物。

Their sharp, transparent teeth help them survive in the hostile environment.The cause of their see-through teeth has long been a mystery.But scientists say they have an answer.

它们锋利透明的牙齿帮助它们在恶劣的环境中生存。它们的牙齿之所以是透明的原因一直是个谜。但是科学家们说他们找到了答案。

In the near-black deep water, a substance covering the teeth prevents any light from reflecting off the teeth surface.This helps a dragonfish hide their big teeth from creatures it wants to eat.

在颜色近乎黑色的深海中,覆盖在牙齿表面的物质可以阻挡任何光线反射到牙齿表面上。这有助于龙鱼隐藏它们的大牙齿,不让它想捕食的动物发现。

“The mouth is invisible and the prey is caught more easily,” said scientist Marc Andre Meyers of the University of California, San Diego.He led the research, which was published this month in the journal Matter.

加州大学圣地亚哥分校的科学家马克·安德烈·迈耶斯说,它的嘴巴是隐形的,更容易抓住猎物。他主持的这项研究本月在《问题》杂志上发表。

Dragonfish have teeth similar to humans and other animals.They are made up of an outer layer of enamel, and an inner layer of hard, dense, bony tissue called dentin.But in the dragonfish, the material has been reorganized.

龙鱼的牙齿与人类和其他的动物的相似。它们的牙齿由外层的牙釉质以及内层坚硬、紧密的骨组织构成,这些骨组织被称为牙质。但在龙鱼身上,这种物质发生了重组。

In the fish teeth enamel are extremely small crystals.And in the dentin, scientists found extremely small pieces of a protein called collagen.If such structures were larger, they would make light scatter.But because they are so small, light passes with ease.The teeth are also very thin.

鱼的牙釉质是非常小的晶体。在牙质中,科学家们发现了一种叫做胶原质的极其微小的蛋白质片段。如果这种蛋白质片段再大一些,它们就会使光散射。但是因为它们很小,所以使光很容易穿过。而且,龙鱼的牙齿也很薄。

Together, these differences prevent any light that may be in the deep water from reflecting off the tooth surface.This makes it easier for the dragonfish to hunt in the waters.

总的来说,这种与众不同的差异可以防止深水中的光线反射到牙齿表面。这使得龙鱼更容易在水中捕食。

Meyers explained that, before, scientists believed dragonfish teeth were made of another, unknown material.

迈耶斯解释说,以前,科学家们认为龙鱼的牙齿是由另一种未知的材料构成的。

“However, we discovered that they are made of the same materials as our human teeth...”

“然而,现在秒速时时彩发现它们和秒速时时彩人类的牙齿是由相同的材料构成的”。

And that surprised them, he said.“Same building blocks, different scales and hierarchies.Nature is amazing in its ingeniosity.”

他说,这让他们感到惊讶。“相同的构成要素,但是却有不同的大小和层级,于是便有不同的形态。大自然的神奇令人赞叹。

The researchers found the fish in depths of up to 1,000 meters in the Pacific Ocean, off the coast of California.

研究人员在加利福尼亚海岸外深达1000米的太平洋深海中发现了这种鱼。

Dragonfish are small, long, and black.They grow to be about 25 centimeters long.In the deep water, dragonfish attract smaller fish to their big, open mouths with beard-like attachments that have a light on the end.

龙鱼又小又长又黑。它们长约25厘米。在深海中,龙鱼会把小鱼引到它们张开的大嘴前,嘴巴上附有胡须状的一条东西,其末端有一盏灯状物。

The dragonfish is not the only creature with transparent teeth.Others, like the anglerfish and hatchetfish, have them, as well.While they have not been investigated yet, Meyers said, “I suspect they have a similar structure.”

龙鱼并不是唯一拥有透明牙齿的生物。其他的鱼类像琵琶鱼和孵化鱼,它们也有。迈耶斯说,虽然还没有对它们进行调查,但我怀疑它们牙齿的构造也是这样的。

I’m Anne Ball.

安妮·鲍尔报道。

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