Eli5 why no big Insects?

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Okay so I’m sure if you’ve read in history that sometime around Jurassic age that insects were like stupidly big due to O2 saturated environments. why can’t we manufacture an enclosed space with gradually increasing oxygen saturation over a few generations and see how big we can get insects?

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Anonymous 0 Comments

Insects don’t have lungs, but absorb oxygen through holes in their exoskeletons. Their blood doesn’t carry oxygen, the air has to get to each cell from the holes only. It doesn’t scale well for large volume-to-surface area.

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