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.
Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.