“The brain homology hypothesis entails losses across the board, with more than 75 percent of existing animal phyla having quite literally lost their heads and exhibiting secondarily degenerated nervous systems. In contrast, the convergence scenario does not require any brain/head/eye… — Russell Powell Copy Share Image
“The brain homology hypothesis entails losses across the board, with more than 75 percent of existing animal phyla having quite literally lost their heads… — Russell Powell Copy Share Image
