Evolution and Development

Evolution and Development - Adaptationist ....

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Adaptationist A scientist who studies different traits in an organism. They split the complex tasks into subtasks For example, how do you recognize faces? You have to be able to see the features in the face, analyze the  parts of the face, and recall the person's face from your memory. Then the adaptationists go and find the  adaptations that allow for these subtasks to be completed. In this way, adaptationists can seek to propose  how natural selection could have evolved such a trait. Canalization Principle States that the genotype restricts the phenotype to a small number of possible developmental outcomes.  This means that the phenotype produced will be the same despite largely varying environments.  Example: babbling in babies. So despite being born in different cultures and being exposed to different  phonemes and languages, all babies follow the same developmental sequence of babbling. In fact, even 
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