Water bears (named for their bear-like walk) are these little microscopic lichen-eating organisms that are both adorable and invincible. Or at least, they’re the most durable creatures on Earth. They can survive tempratures from -273 °C (close to absolute zero) to 151 °C (1,000 times more heat than most animals) and can stay alive more than a decade without water. Scientists have even exposed them to the vaccuum of space for 10 days and they survived! It’s nice to know that no matter what happens, our planet will be survived by the Twinky and the water bear.
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