
Evolution Stories Are Subtle and Complex Truth or Euphemism?
October 29, 2004
A worm brain has photoreceptors similar to those in humans. What does it mean? Elizabeth Pennisi in Science1 sets the stage, commenting on work by Arendt et al. in the same issue,2 “Ciliary Photoreceptors with a Vertebrate-Type Opsin in an Invertebrate Brain.” One might think this demonstrates common ancestry, but Pennisi explains that it’s not […]