I have to wright a research paper about monkeys and i need a thesis statement and i don't how to wright it

Here you go: When you think of a rain forest or a place like Africa, you immediately think lions, or giraffe, or jumping tree frogs. But when I think of those places my mind wanders to a creature so much like us people are saying we are descended from them. That's right I'm talking about monkeys. Let me tell you a little bit about our furry friends!