This week it's an Alexis and Katelyn extravaganza, as we explore the wonderful world of... science! Why did T-Rexes have such teeny arms? Why are mushrooms so weird? And why is David Attenborough so friggin confident about what apatosaurs sounded like?? All these questions and more will be discussed on this week's episode, when we explore some of our favorite mysteries of nature, and present our own personal highly researched explanations for them. Hop on your favorite search engine, because this one's about to get science-y.