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Posts: 3560
12 years ago
In testing a hypothesis that "territorial defense in European robins is a fixed action pattern that is released by the sight of orange feathers," researchers found that robins defended their territory by attacking anything that was of similar size and had an orange patch. How would you show that it was indeed color that initiated the defense responses?
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Valued Member
12 years ago
Repeat the experiment removing the orange patch.
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