Robots as models of evolving systems

Proc Natl Acad Sci U S A. 2022 Mar 22;119(12):e2120019119. doi: 10.1073/pnas.2120019119. Epub 2022 Mar 17.

Abstract

Experimental robobiological physics can bring insights into biological evolution. We present a development of hybrid analog/digital autonomous robots with mutable diploid dominant/recessive 6-byte genomes. The robots are capable of death, rebirth, and breeding. We map the quasi-steady-state surviving local density of the robots onto a multidimensional abstract “survival landscape.” We show that robot death in complex, self-adaptive stress landscapes proceeds by a general lowering of the robotic genetic diversity, and that stochastically changing landscapes are the most difficult to survive.

Keywords: adaptable landscapes; evolution; robotic biology; stochastic dynamics.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Mammals
  • Models, Genetic
  • Mutation
  • Population Dynamics
  • Probability
  • Robotics*
  • Selection, Genetic