What would be a good thesis statement for a research paper on endangered species I'm trying to focus more on the overall history such as why we created the endangered species list in the first place I just can't think of a good thesis statement.

Answer 1

Write the body of your paper first, including your conclusion. Then write the introduction with the thesis statement.

Answer 2

This tells all about thesis statements:

http://owl.english.purdue.edu/owl/resource/545/01/