Biology / Bio 1665 · Atom · ~20 seconds

Fossil Evidence for Evolution

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The fossil record documents past organisms that differ from those living today, arranged by age to show gradual change in form over time.

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Fossil hominid skulls arranged from oldest to newest show the skull's shape changing gradually across that span.

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A fossil sequence shows the order and pattern of change — dating individual fossils' exact ages is a separate task.