A Siamese Twin will always have a companion

Artificial jellyfish built from rat cells

Reverse-engineered life form could be used to test drugs.

Bioengineers have made an artificial jellyfish using silicone and muscle cells from a rat’s heart. The synthetic creature, dubbed a medusoid, looks like a flower with eight petals. When placed in an electric field, it pulses and swims exactly like its living counterpart. “Morphologically, we’ve built a jellyfish. Functionally, we’ve built a jellyfish. Genetically, this thing is a rat,” says Kit Parker, a biophysicist at Harvard University in Cambridge, Massachusetts, who led the work. The project is described today in Nature Biotechnology1.

Read More: http://www.nature.com/news/artificial-jellyfish-built-from-rat-cells-1.11046