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Micro-animal : ウィキペディア英語版 | Micro-animal
Micro-animals are animals so small that they can only be visually observed under a microscope. Microscopic arthropods include dust mites, spider mites, and some crustaceans such as copepods and the cladocera. Another common group of microscopic animals are the rotifers, which are filter feeders that are usually found in fresh water. Some nematode species are microscopic,〔http://www.mt.nrcs.usda.gov/technical/ecs/agronomy/technotes/agtechnoteMT73-150.3/microscopic.html〕 as well as many loricifera, including the recently discovered anaerobic species, which spend their entire lives in an anoxic environment.〔(【引用サイトリンク】title=Animals thrive without oxygen at sea bottom )〕〔(【引用サイトリンク】title=Briny deep basin may be home to animals thriving without oxygen )〕 The tardigrades, water-dwelling micro-animals, can survive extreme living conditions that they are not evolved for and have survived the hard vacuum of space, solar and UV radiation in an astrobiology experiment into space. == References ==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Micro-animal」の詳細全文を読む
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