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Recent Adaptations in Humans

Summary

Lactose tolerance, sickle cell anemia, and bitter taste perception are three examples of recently evolved human traits.

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Humans, like all species, are continually evolving and adapting to the environment. Natural selection is the process by which individuals with traits most suited to their environment produce more offspring and pass on their genes. Also featured on the HHMI DVD Stones, Bones, and Genes: The Origins of Modern Humans, available free from HHMI. 

Download the accompanying worksheet (PDF) for students to complete as they go through the Click and Learn.