Skit for Biology....woo-hoo?

I have to make a "skit" in biology consisting of me and two of my friends. The Topic is threatened species. I was placed in charge of coming up with the skit and my friends researched for the information. I'm really good at writing, but I can't seem to think of a first sentence I could start with. It's just gonna be like an everyday conversation between me and my friends.....any ideas?