Ewert’s model represents a valuable tool in the developing theory of biological design, which should eventually supplant phylogenetic analyses.
Does the five-digit design of the whale flipper, akin to the five-digit design of so many different kinds of animal limbs, point to evolutionary common descent?
How strong is the evidence for Darwinian evolution? What are the limits of the Darwinian mechanism?
Critics laughed, and he removed it from later editions, but Charles Darwin privately continued to believe that whales evolved from a “race of bears.”
In the wild, all organisms must live within their niche. There are no wild polar bears in Arizona, and no iguanas in Alaska.