Every human being without water can only survive about 100 hours, but there is one creature that has the capacity to survive without water for decades, this flexible one-millimeter animal can survive in the hottest and coldest environments on Earth, and it can even withstand dramatic radiation levels and even the vacuum of outer space, this is really amazing. This is the tardigrade has the appearance of an 8 legged gummy bear and is one of the sophisticatedly strongest creatures on Earth for the following reasons First, most organisms need water to allow metabolism to occur, but tardigrades virtually circumvent this restriction through a restricted process called anhydrobiosis, which means living without water. Second, for all tardigrades to survive, they need to go through a state called a barrel, for this process by rolling into a ball, bending the head and the 8 legs inside their body, the tardigrades wait until the water returns, prot