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This smiling robot has a face covered in ‘living’ skin | CNN
Scientists create smiling robot face from living human skin cells
Researchers craft smiling robot face from living human skin cells
Scientists in Japan Give Robots a Fleshy Face and a Smile
Meet Sophia: The robot who smiles and frowns just like us | CNN
A humanoid robot makes eerily lifelike facial expressions
A robot named ‘Emo’ can out-smile you by 840 milliseconds
Say cheese: Japanese scientists make robot face 'smile' with living ...
The Robot Smiled Back - Columbia Engineering
Human-robot facial coexpression | Science Robotics - AAAS