Playing is just one of many ways that mammals and other animals learn how to behave, and cats are Mammals that Shed Dogs are Mammals that Wag their tails. Given these facts, why do dogs play among the following options:
- To keep their body heat.
 - To win a fight
 - it keeps an organism warm
 - increases a body's strength
 - To learn to behave
 - allow growth
 - To become dominant
 - To spend time alone


 

     To learn to behave    