Gather at The Chicago Athletic Association’s Drawing Room on February 4th at 6 p.m. to listen to biologist and explorer Lesley de Souza discuss her adventures tracking and trying to save the endangered arapaima during the latest Chicago Athletic Association Storytelling Series. The arapaima, which can grow to be 10 feet long and 400 pounds, descend from an ancient lineage of freshwater fish whose ancestors shared the vast South American wetlands with the dinosaurs. Yes, the dinosaurs. Now you know why de Souza works so tirelessly to save them from agricultural and mining projects in the area. You don’t know how hard she works? Then you definitely need to sign up for this storyteller series to find out.