chewing

Fish chew by sending their food on an assembly line to the back of the mouth. Mammals chew by positioning food for the teeth. Can evolution explain this difference? Science Daily was sure of it. “Evolution has made its marks -- large and small -- in innumerable patterns of life,” The article said. “New research from Brown University shows chewing has evolved too.” When one looks for the evidence that chewing has evolved, though, one only finds blanks with the assumption that evolution must have done it.