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  1. Staging and Testing

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Genetic Similarity Does Not Necessarily Mean Common Inheritance

Different populations of stickleback fish have parallel genetic adaptations to similar local habitats.

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Trilobite Explosion

The abrupt appearance of trilobites in Cambrian strata and their absence in Precambrian sediments is a real feature of the rock record and not due to failure of preservation in Precambrian rocks.

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Catastrophic Earth Science

Do you want to learn more about the history and significance of catastrophism in geology? Here is a short…

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Questions about Neanderthals

What are some of the main questions about Neanderthals? Get answers and explore the intersection of data…
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