This Shellder is based on (main account )'s submission based on extremophiles and heat shock proteins, which help when the cell goes under stress. I'll post the evolution on a separate day.
I forgot to say

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This red triangle is an arsenic crystal. Recent discoveries in the world of extremophiles suggests that early life might have been able to flourish in oxygen starved conditions where arsenic was readily available.

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Did you know some bacteria can survive being frozen for thousands of years?

Extremophiles are microbes that live in extremes of radiation, cold, heat, pressure, drought, acidity and salinity. This art shows ice extremophiles encased in permafrost- frozen in time. 1/2

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This illustration of Planococcus halocryophilus bacteria—dweller of Arctic permafrost—is the 3rd in our extremophiles series. Astrobiologists study P. halo to understand how life could survive in super-low temps on Mars. Art by Nicolle R. Fuller of SayoStudio.

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Extremophiles. Microscopic as they are hostile. Or so I thought...

It came lurking through the dark matter. The amalgamation of the many organisms that wiped our numerous galaxies. Forged as a single horrific entity.

Its eyes pierced through me. I could see my fate.

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