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Researchers from the U.S. and U.K. found tardigrades move their limbs in a way similar to insects, despite being many times smaller and living in different environments.
Most tardigrades live in or near freshwater, but they’ve also been found in ocean, mountain, and forest habitats, according to the Marine Biological Laboratory.
Scientists from Japan found two tardigrades and an egg frozen in a more than 30-year-old moss sample from Antarctica.
The key to tardigrades’ resilience is their ability to enter a low metabolism state and curl into a ball called a tun.
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Researchers from Oxford University say tardigrades could survive every conceivable apocalyptic scenario until the end of the Earth itself.
In 2020, an Israeli spacecraft crashed on the Moon, spilling its cargo. Included in that cargo were thousands of dehydrated tardigrades.