Snail Changes Outpace Evolution's Slow Crawl by Brian Thomas, M.S.* Scientists observe many changes to animal physiology that occur too quickly to fit the “slow and gradual” concepts favored by classical Darwinian evolution. An illustration of this type of rapid variation is the ever-growing list of dog breeds, which proliferated to over 150 from only a few dozen strains in just a couple of centuries. Now, the size of certain Atlantic Ocean snail shells is providing further evidence for speedy diversification within species, having “actually increased by an average of 22.6% over the past century.”[1]...