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Evolution of Túngara Frog
Mating Calls
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Evolutionary biologists have developed
many techniques to analyze how male and female mating
preferences have co-evolved. These studies combine animal
behavior, sensory biology, phylogenetics, and neurobiology
to observe the effects of male trait biases based on female
receiver systems; that is, the “attractiveness”
of the male trait to potential female mating partners.
In this case study you will learn about the mating calls
of Physalaemus frogs, and how the calls have evolved over
time. You also will see how scientists use molecular information
to develop an evolutionary tree based on sequence homology.
Before beginning this case study, you may want
to review these related materials:
• Evolution
and Phylogenetics Video
• Evolution
and Phylogenetics
Online Text
• Genomics
Online Text
Non-Flash
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