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They didn't evolve because they didn't need to. Natural selection roots out the weak genes which allow the strongest traits to survive. Evidently, as insects did not change, their traits and genes were already ideal for the environment, so they did not evolve.

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11y ago
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14y ago

insects were created to complete the life cycle.

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9y ago

Insects could live on the rotting plants and animal carcasses during the mass extinction. It was easy for them to survive, while dinosaurs starved with a lack of fresh plants and live prey.

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9y ago

Yes they do, that is why strong pesticides have to be developed.

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Q: Why didn't insects evolve?
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