The Mesozoic Era, when dinosaurs roamed the Earth, was followed by a brief, embarrassing phase in which one species somehow became dominant: homo sapiens, or “humans.” Humans were mammals who lived on land and watched YouTube.

We first learned about humans when Dr. Martin Hardshell, a forensic crustalogist, was digging in Ancient Philadelphia with his own two claws. Our understanding of world history was fundamentally altered by his discovery of the Fishtown Ukulele and the Manayunk Toupee.