How the Guppy Got Its Spots

Lab (Workbook): How the Guppy Got Its Spots

Recreate Endler's famous studies of guppy spot brightness in different streams in Trinidad. Students observe the pattern of spot brightness across several pools, then apply classic experimental techniques such as transplants, removals, and behavioral studies to uncover the mechanisms behind the pattern.
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Level: Advanced
Key Concepts: Experimental Design; Natural Selection; Sexual selection
Courses: Evolution; Microevolution


"The guppies lab was a big hit, and I think the chance to design and test hypotheses is suitable for students at all levels. ...I am very happy with your software."
Dr. Maarten Vonhof, Western Michigan University

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