High winds and the constant, if slow, motion of glaciers roll these tiny pebbles and dust around.
they are covered in moss on all sides.
They are called Glacier Mice.
Glacier Mice have been mostly documented over glaciers in Iceland, North and South America and the Himalaya.
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Glacier mice are fluffy and sponge-like and have the capacity to hold water.
Up to 73 springtails, 200 tardigrades and 1,000 nematodes was recorded inside just a single mouse.
An individual mouse exist for only a few years before falling apart.
Sources:NY Times/University Centre in Svalbard
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