Examine the cladogram of whales and their ancestors presented in this video. Note that this diagram does NOT show modern whales evolving from any specific fossil form, but from the common ancestors of known fossil species and modern animals. Discuss the important difference between this view of evolutionary history, and the old view -- which often attempted to identify specific fossils as the ancestors of a living form. https://florida. pbslearningmedia. org/resource/tdc02.sci. life. evo. howhappens/evolving-ideas-how-do-we -know-evolution-happens/