Arthur C Clarke called this creature as a "biot" in his book, Rendezvous With Rama, which was published about thirty years ago. Well, a team of scientists from Harvard were able to build an artificial sting ray. This could probably lead to human-like robots.
Meet the First Artificial Animal http://www.inc.com/lisa-calhoun/meet-the-first-artificial-animal.html http://www.inc.com/lisa-calhoun/meet-the-first-artificial-animal.html Meet the First Artificial Animal http://www.inc.com/lisa-calhoun/meet-the-first-artificial-animal.html Scientists genetically engineered and 3-D-printed a biohybrid being, opening the door further for lifelike robots and artificial intelligence. View on www.inc.com http://www.inc.com/lisa-calhoun/meet-the-first-artificial-animal.html Preview by Yahoo