Tardigrades (Tardigrada), commonly called water bears because of their appearance and movements (they walk like bears)

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These little animals commonly live on the surface of damp mosses, on which they feed by absorbing their nutrients with their strange proboscis. In fact, it is very possible that we have seen them on occasion if we have stopped to look closely at the moss.

Characteristics:

adult tardigrades measure about 0.5 mm, so they are visible to the naked eye, moving very slowly on plant tissues, but you have to pay close attention to perceive their presence.

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The smallest can only measure 0.05mm.

They are oval or elongated in shape.

They feed by sucking vegetable or animal liquids.

What makes them Amazing?

Water bears are famous for their extreme toughness. What's more, they are considered the only animal capable of resisting the space "vacuum" and its lethal radiation.

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They are extremophilic organisms (resistant to extreme conditions), they can withstand very high pressures of almost 6000 atm2; can survive temperatures of -200 ° C and up to 150 ° C, 3 and prolonged dehydration (up to 10 years can go without getting wate