The Scene: In the car with Paul and Jen on the way to Moab.
Julia: "...and did you know that a kangaroo can't jump unless it's tail is touching the ground?"
Sloan: "Whatever. That's not true."
Julia: "Um, it IS true. I read it."
Sloan: "Haven't you ever seen a kangaroo run? Their tails point out, they aren't touching the ground!"
Julia: "I'm not talking about RUNNING, I'm talking about JUMPING. Stop trying to embarrass me in front of Paul and Jen!"
Sloan: "Their running IS jumping! They bound around!!"
Julia: "I can't say anything around you!! Let me just tell people fun animal facts for once!!"
Sloan: "You need to watch a kangaroo before you just assume you know how they work!!!"