The problem with diffusion is that it’s notoriously slow. The oxygen constraint hypothesis argued that the larger the insect ...
I love taking selfies with my insect friends. They’re so tiny and look so different from me. But my friend Rich Zack told me that insects and humans have lots in common. He’s an insect scientist at ...
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Why don't giant prehistoric insects still exist?

Three hundred million years ago, dragonfly-like creatures with wingspans stretching 70 centimeters patrolled the skies of a world nothing like our own. These griffinflies, as paleontologists call them ...