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Scientists from Cornell University have successfully constructed DNA-based machines with incredibly life-like capabilities. These human-engineered organic machines are capable of locomotion, consuming resources for energy, growing and decaying, and evolving. Eventually they die.
The Cornell team grew their own robots using a DNA-based bio-material, observed them metabolizing resources for energy, watched as they decayed and grew, and then programmed them to race against each other... Lead author on the team's paper, Shogo Hamada, told The Stanford Chronicle that "ultimately, the system may lead to lifelike self-reproducing machines."