Tardigrades (known as Water Bears) is part of supefilum Ecdysozoa, phylum Tardigrada. Very small in size, live in water, with the legs of eight.
Tardigrades first Eprhaim described by Goeze in 1773. The name Tardigrada means "slow walker" given by Spallanzani (1777). Tardigrades adult body length is 1.5 mm, the smallest size of 0.1 mm, 0.05 mm-sized larvae.
Tardigrades can be found in all parts of the world, ranging from Himalayan peaks hinngga in the ocean floor, and from the poles to the equator.
A favorite place where berganggang. On the beach, land and water can be found in this mini beast.
The most interesting of these animals is the ability to adapt in a very extreme environment. Tardigrades can survive in a frozen environment (0oc) until the high temperature place (151oc). Even to withstand radiation 1,000 times higher than the amount of radiation in which other living creatures can survive. Therefore, animals known as tardigrades that polyextremeophiles
With these capabilities, tardigrades are living creatures that can survive a nuclear war or other natural disaster is extreme. Even tardigrades can live for 120 years in dry conditions.
Another unique capability of the tardigrades can survive in conditions of space vacuum. In one study in September 2007, tardigrades can live for over 10 days in space environment. Tardigrades that up into the shuttle using a photon-M3 by the European Space Agency, can survive vacuum conditions, exposed to cosmic rays, and can even withstand the sun UV radiation 1,000 times higher than the radiation at the earth's surface.
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