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Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892

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BuyFindarrow_forward

Biology: The Dynamic Science (Mind...

4th Edition
Peter J. Russell + 2 others
ISBN: 9781305389892
Textbook Problem

Discuss Concepts Although females provide parental care far more often than males in the animal kingdom as a whole, exceptions exist, especially among birds and fishes. Develop three evolutionary hypotheses to explain why male birds are so likely to involve themselves in caring for their offspring.

Summary Introduction

To review:

Evolutionary hypothesis that describe why male birds are less likely to involve themselves in caring for their offspring.

Introduction:

Parental care involves caring of newly hatched offspring by parents till they are able to survive on their own. The contribution of parents is different in different species. Maternal care is most common but paternal care, that is, care by male parent, is also present.

Explanation

Paternal care is not very common among different species but is existing in case of birds and fishes. The hypotheses for evolution of such behavior are as follows:

1. Males are less involved in the process of caring for unrelated offspring.

2...

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