Or a doctor would make a medical journal about someone's whole arm growing back. (religion.blogs.cnn.com)
Typically, they will start with the signs and gestures that involve facial expression (blowing, panting), then whole arm signs (i.e., bye bye, clapping), then hand signs (i.e., more, milk) and finally signs involving various hand shapes and more dexterity (i.e., cat, pointing) Once they have internalized the meanings of the signs and have developed the cognitive and motor skills necessary to sign, they will communicate to you. (tinyfingersmn.com)
Their platform is a humanoid robot that sprouts two 60 - pound (27 - kilogram) Whole Arm Manipulators (WAM) made by Cambridge, Mass., — based Barrett Technology, Inc., each tipped with a 2.6 - pound (1.2 - kilogram) three - fingered BarrettHand. (scientificamerican.com)