How do I turn this into a really good thesis statement?

In the myth " When Grizzlies Walked Upright" explain how the bears lived in relation to each other before and after the introduction of the female into their clan, and explain how both the bears and female contributed to their community.

http://leo.stcloudstate.edu/acadwrite/thesistatement.html

To turn your question into a strong thesis statement, start by identifying the main ideas or arguments you want to address in your essay. Based on your question, it seems you want to discuss the relationship between bears in the myth "When Grizzlies Walked Upright" and how the introduction of the female bear impacted their dynamics. You also want to explore the contribution of both the bears and the female bear to their community.

Now, let's combine these ideas into a thesis statement:

"The myth 'When Grizzlies Walked Upright' illustrates the pre-existing dynamics among the bears and the transformation that occurs with the introduction of the female bear, highlighting the ways in which both the bears and the female bear contribute to their community."

This thesis statement clearly outlines the main points of your essay: the initial relationships among the bears, the influence of the female bear on their dynamics, and the contributions of both the bears and the female bear to their community.