BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Question
Chapter 39, Problem 2CT
Summary Introduction
To determine:
The way in which an individual's preference could be evolved by kin selection.
Introduction:
Animal behavior is derived from the two causes: proximal causes and ultimate causes. Proximal causes include genes, physiological mechanisms and environmental factors that regulate the behavior. Ultimate causes involve evolutionary factors that alter animal behavior.
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You document altruism in an animal species that you are studying: female zebras running at the back of the group, closest to the pursuing predator, as the group runs to escape a predator. Both kin selection and reciprocal altruism can explain this behavior. What piece of evidence would support the hypothesis that it's kin selection?
Differentiate Kin selection from altruism.
Cooperative behaviour is widely found among animals. Provide the following:
1) an example of cooperative behaviour between genetically related individuals
2) an example of cooperative behaviour between unrelated individuals. For each of the examples, also describe the mechanism(s) involved in maintaining cooperative behaviours during their interactions.
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