Tardigrades Have Eight Legs With Claws
Each stubby leg ends in claws that help them grip moss and lichens.
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Johann Goeze First Described Tardigrades in 1773
He called them little water bears, and Lazzaro Spallanzani gave them the name Tardigrada in 1777.
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Tardigrades Survive Drying Out by Entering a State Called Cryptobiosis
They shrivel into a dry form called a tun and can revive when water returns.
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Tardigrades Are Usually Less Than a Millimeter Long
They can be seen only under a microscope.
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Tardigrades Are Also Called Water Bears or Moss Piglets
Their plump bodies and slow gait inspired the nicknames.