Imagine that you have a cat that is purring on your lap. Which of the following questions would Niko Tinbergen ask about this behavior?
A) Is there any relationship between the cat's larynx and purring? Does air move over the cat's larynx in a specific way to produce a "purr"?
B) Why did purring first evolve in cats? Was this behavior initially used by cat ancestors to attract mates? To communicate between female cats and their kittens?
C) Do cats that purr have a greater rate of survival than those that don't? Does purring in cats serve any reproductive purpose?
D) How many genes-if any-direct purring behavior in cats? Do cats learn to purr from their maternal parent? Their paternal parent?
E) Tinbergen would ask all of these questions regarding purring in cats.
Correct Answer:
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