This 429 million-year-old trilobite eye is similar to those of modern insects

Eyes don't typically appear in the fossil record, but researchers were able to study the well-preserved and fossilized internal structure of a 429 million-year-old trilobite eye. Surprisingly, they found that the structure of the eye was nearly identical to the compound eyes of modern bees, dragonflies and crustaceans, according to the new study.

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