Fossils, Anatomical Homology, Biogeography

Fossils, Anatomical Homology, Biogeography, will be the pieces of evidence that will be used for evolution. Fossils are one of the most important evidence for evolution because they show how the organisms change and looks through time. Analyzing the evolution of whales through the comparison of series of fossils from a terrestrial animal, like “Pakicetids, to a water animals like Ambulocetus, Kutchcetids, Rodhocetids, Basilosaurous, Squalodon, Aetiocetids, and Whales took 8 millions of years. In that time, the spine changed, limbs changed, nostrils moved, the skull changed in shape, and the brain changed in it” (“Whale Evolution”).