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  • This is a Tardigrade.

    這是緩步類動物。

  • They're tiny animals that grow up to one millimeter long, and have eight legs.

    牠們是只有一毫米長,有八隻腳的小動物。

  • They're also known as water bears.

    牠們的另外一個名字是「水熊蟲」。

  • Their feet look like this, more like claws.

    牠們的腳長得很像爪子。

  • And up close, their faces look like this.

    而牠們的臉湊近看長這樣。

  • Some speculate that there are around 900 known species.

    有人推測現今大概有九百多種不同品種的水熊蟲。

  • They were given the name Tardigrada, by Italian biologist Lazarro Spallanzani.

    牠們都被歸類為緩步動物,而這個名字是由義大利生物學家拉札羅.斯帕拉札尼首先提出的。

  • They're also known as moss piglets.

    水熊蟲也被稱為苔蘚小豬。

  • They typically live around water and damp moss or lichens, but can be found almost everywhere on Earth.

    牠們通常住在有水的地方或是潮濕的苔蘚與地衣周圍,但幾乎整個地球上都可以發現牠們的蹤跡。

  • Some theorize they might have come from space, of course, this is just a theory.

    有些人推論水熊蟲可能來自外太空當然,但這當然也只是猜測而已。

  • They can survive dry periods by curling into little balls.

    在極為乾燥的環境下,水熊蟲可以藉由蜷曲成球狀繼續生存下去。

  • They can hang around like that for 100 years, before casually regenerating.

    他們可以維持這個型態持續一百多年,然後若無其事地再次重生。

  • Some species are carnivorous.

    有些水熊蟲為食肉動物。

  • Some might even eat other Tardigrades.

    有些甚至會吃自己的同類。

  • So, how resilient are these little guys?

    所以,這些小傢伙的生命力到底有多強呢?

  • They can withstand 1,000 times the lethal human dose of X-ray radiation.

    他們可以承受的致命 X 光輻射量是人類的一千倍。

  • In 2007, some Tardigrades hitched a ride on a space shuttle and lived outside the spacecraft in an oxygen-deprived vacuum of space for 10 days.

    2007 年時,一些水熊蟲上了艘太空梭,並在太空梭外的真空狀態下生活了十天。

  • Many survived.

    而不少水熊蟲撐過去。

  • All of which means, it's probably impossible to kill a tardigrade.

    這也代表著,要殺死水熊蟲大概是不可能的事。

This is a Tardigrade.

這是緩步類動物。

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    Mikae Wu 發佈於 2021 年 08 月 16 日
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