Summations Only

However the evidence that there have been massive changes in the past is adequate support that massive changes are possible.No one says massive change is inevitable. In fact there is evidence that if the selective pressures remain the same massive changes may not be seen.

A nice relatively short yet detailed summary of the state of whale fossil lineage from about ten years ago can be found here.Also the Smithsonian has another relatively clear and well laid out description of the learning process the scientists went through including the advent of genetic evidence that can be found here.Both articles show that the evidence developed over a long period of time as new discoveries were made yet every new discovery confirmed the hypothesis that whales descended from land dwelling mammals.Edited by jar, : fix sub-title