Constructed of silicone and heart cells, medusoid moves like the real thing
Call it the Frankenjelly.
Scientists have created an artificial jellyfish that swims with the same synchronized body contractions used by real jellyfish. After analyzing the swimming dynamics and layout of tissues in the common moon jelly (Aurelia aurita), the scientists fashioned an umbrella-shaped frame with eight armlike structures out of an elastic silicone polymer. Then they seeded this frame with rat heart cells. Guided by minuscule patterning on the polymer, the rat cells grew into layers of muscle.