Chapter 25.6, Problem 1CYL

Summary Introduction

To list:

The advantages and disadvantages of living in a group and also describe the different degrees of sociality that occur among mammals.

Introduction:

One of the most important features of animal life is the tendency to associate with others. In a species, animals interact with at least four members. There are some of the species which develop complex and highly structured relationships with the members of other species.

Summary Introduction

To explain:

The conditions under which altruism is most likely to evolve.

Introduction:

There are some cooperative societies which are based on behavior. This seems to sacrifice the individual for the benefits of the group. The altruism is defined as the behavior which decreases the reproductive success.

Summary Introduction

To describe:

The societies of honey bees and naked mole rats.

Introduction:

The honeybees can live together in a rigidly structured society. The groups of honey bees are one of the puzzling groups. The vertebrate society of mole rats is more complex as compared to humans. The highly unusual society among non-human mammals is that of the naked mole rat.