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It's often said cockroaches could withstand a nuclear
explosion.
But another creature, dubbed 'nature's greatest survivor,' is even more
invincible, and you've probably never even heard of it.
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Tardigrades, also known as water bears, are some of the most fascinating
animals in world because they can live happily in the most extreme
conditions.
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While not the most attractive creatures, the small, segmented animals
come in many forms - there are more than 900 species of them - and
they're found everywhere in the world, from the highest mountains to the
deepest oceans.
Boil the 1mm creatures, freeze them, dry them, expose them to radiation
and they're so resilient they'll still be alive 200 years later.
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Water bears can hack temperatures as low as -457 degrees, heat as high
as 357 degrees, and 5,700 grays of radiation, when 10-20 grays would
kill humans and most other animals.
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The animals can also live for a decade without water and even survive in
space. |