This Tree of Life considers a new branch with four phylogenetic lines. Automata corresponding to a stem that goes from the first mechanical bodies, like the Jacques Vaucanson’s duck or the dolls by the Swiss watchmaker Pierre Jaquet-Droz, to the contemporary industrial robots. They are essentially mechanic and perform cyclic tasks. Humanoid includes anthropomorphic robots driven by artificial intelligence. It contemplates also robots like the dog Aibo and other animal mimicry, as they arise from the same anthropomorphic view. Autonomous trunk gathers unmanned and self-sustained robots, from early turtle robots by William Grey Walter, now better known as BEAM, to any kind of robot able to gain information directly from the environment and perform diverse tasks without human intervention. Although Mars Exploration Rovers like Spirit or Opportunity are remote controlled they should also be considered here given the operation environment and the significant degree of autonomy. Nanorobots branch includes the robots built at the nanometer scale. It is likely that in the future one more branch will emerge: Erobots able to evolve and perhaps to reproduce. <- Main contact