Entropy, biological evolution and the psychological arrow of time
  We argue that in Universes where future and past differ only by the entropy content a psychological arrow of time pointing in the direction of entropy increase can arise from natural selection in biological evolution. We show that this effect can be demonstrated in very simple toy computer simulations of evolution in an entropy increasing or decreasing environment. 
Torsten Heinrich, Benjamin Knopp and Heinrich P\"as
physics.gen-ph astro-ph.CO q-bio.OT