Shapeshifters, cyst makers, brain-takers: The secret world of amoebae

Some cell-shocking facts about these microscopic organisms — they may lack bones, bravado, or branding, but they are among the most adaptable, fascinating, and weirdly wonderful creatures on the planet

Acanthamoeba castellanii is a hardy species found in soil, tap water biofilms, and even contact lens cases. It can cause a rare and painful eye infection known as Acanthamoeba keratitis

They don’t have a face, a spine, or even a proper shape. They glide like jelly, ooze like spilled custard, and dine like microscopic Pac-Men. No, this isn’t the pitch for a sci-fi B-movie, it’s real life. Meet the amoebae: Earth’s original shapeshifters and the underappreciated heroes (and occasional villains) of the microbial world.

What are amoebae?