In preparation for the museum's new Dinosaurs in Motion exhibit, we wanted to learn a little more about the dinosaurs from the Mesozoic Era and those alive today: birds.  We talk to paleontologist Daniel Ksepka and ten-year-old Afah Takwi about the connection between the T-Rex, the Hummingbird, and all the strange creatures in between.  Pictured here is the dinosaur Yi Qi, as illustrated by Emily Willoughby.  Music by Drop Ceiling, Boon, and Sully Allen.