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This illustrated video explores how natural and sexual selection can shape the way animals look and act, sometimes transforming the drab into the magnificent. To access the associated multiple choice and open answer questions, you'll need to register with the site.
Registration may be required to view the multiple choice and discussion questions.
Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details.
- Traits that confer an advantage may persist in the population and are called adaptations. (LS4.B, LS4.C)
- Inherited characteristics affect the likelihood of an organism's survival and reproduction. (LS4.B, LS4.C)
- Natural selection acts on the variation that exists in a population. (LS4.B, LS4.C)
- Natural selection acts on phenotype as an expression of genotype.
- There is variation within a population. (LS3.B)