Giant prehistoric insects didn’t need high oxygen after all, study finds

ScienceDaily
Apr 25, 2026, 12:38 am60 ptsTrending
Ancient Earth once buzzed with enormous dragonfly-like insects, and scientists long thought high oxygen levels made their size possible. A new study overturns that idea, revealing insect flight muscles weren’t constrained by oxygen after all. Their breathing system has plenty of room to expand, meaning oxygen…

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Giant prehistoric insects didn’t need high oxygen after all, study finds

ScienceDaily

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