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Chapter 8: Animals

Difficulty Level: At Grade Created by: CK-12


Fighting or playing?

You might think that these young tigers are fighting, but they’re really just playing. Like most other young mammals, tigers like to play. Why do mammals play? Is playing just for fun, or does it serve some other purpose as well? Playing is actually an important way of learning. By playing, these tigers are learning moves that will help them become successful predators as adults. Playing is just one of many ways that mammals and other animals learn how to behave.

Chapter Outline

Chapter Summary


Animals. Currently the end of the line for evolution. But there are all sorts of animals, from the extremely simple to the extremely complex. Along with this range of animals comes a range of behaviors. These behaviors are discussed in this concept.

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Difficulty Level:

At Grade



7 , 8

Date Created:

Nov 29, 2012

Last Modified:

Nov 01, 2015
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