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Could tardigrades have colonized the moon?
Summary by Ground News
Tardigrades are microscopic animals that measure less than a millimetre in length. All have neurons, a mouth opening at the end of a retractable proboscis, an intestine containing a microbiota and four pairs of non-articulated legs ending in claws, and most have two eyes. Dehydrated adults survive for a few minutes at temperatures as low as -272�C or as high as 150�C.