Your middle ear comes from the jawbone of a prehistoric fish. Your skin and hair can be traced to a shrew-like mammal that lived around 195 million years ago. As for your bad back – well, you can thank your primate ancestors for that. How did the human body become the complicated, quirky, and amazing machine it is today?

Follow the scientific adventure story in Your Inner Fish, a new series premiering on WTTW11 on April 9 that takes a fresh look at human evolution. Based on the best-selling book of the same name by University of Chicago paleontologist and evolutionary biologist Neil Shubin. Using fossils, embryos, and genes, Shubin reveals how our bodies are the legacy of ancient fish, reptiles, and primates – the ancestors you never knew were in your family tree.

This free event will feature the first episode of the three-part science series, and a discussion with Neil Shubin and the Field Museum's distinguished service curator Lance Grande follows the 60-minute screening. Seating will be on a first-come, first-serve basis. You can RSVP here.