While reality is often stranger than fiction, exploring the real-world science of explaining Dragon Ball characters rests among the strangest exercises. The physiology and Earthling parallels to Majin Buu are explored thanks to an interesting interview between entertainment analyst Maishilo (found on X) and Hokkaido University professor and cellular biologist Dr. Hisashi Haga. Published on the official Dragon Ball website, this interview explores the franchise under the microscope. From everything, including slime molds to mitochondria to osteoclasts, Buu has surprisingly fascinating counterparts on Earth, with Haga joking that only Saiyans could eradicate them.

https://screenrant.com/dragon-ball-majin-buu-scientist-theory-saiyan-defeat/