What makes pumpkins genetic Frankensteins? In this video, Alex Dainis explains how modern pumpkins are one of two species: Cucurbita maximus and Cucurbita moschata. When scientists sequenced their genomes, they found something interesting: modern pumpkins genomes appeared to retain traits from two different species of ancient pumpkins! Now, this information can potentially be used to create more disease-resistant, heat-resistant, or nutritious pumpkins.