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butthurt [soylentnews.org] writes:

Science reports [sciencemag.org] on the work of a heart researcher who has built a cyborg imitating a stingray. To a silicone framework are attached artificial muscles consisting of fibronectin [wikipedia.org]. The "muscles" are controlled by heart cells taken from rat embryos; the cells have been genetically modified so that they are sensitive to light. By shining a beam of light, the researcher is able to guide the cyborg through "underwater obstacle courses."

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