Which of the following is an effective thesis statement for an expository essay about animal adaptations.

In this essay, I will tell you all the ways animals have adapted to their environment.
Animals have developed physical and behavioral adaptations to help them survive in harsh or new environments.
One of the coolest animal adaptations is a chameleon, which I have at home.
Have you ever seen an animal that adapts to its environment?

Animals have developed physical and behavioral adaptations to help them survive in harsh or new environments.