This shows the transitional forms during whale evolution.
Providing great evidence of change overtime. Transiitional forms fossils or organisms that show the intermediate states between an ancestral form and that of its descendants.
Types of transitions[]
General lineage
Species-to-species transition
Transitions to New Higher Taxa
GAPS[]
An example of gaps in the evolution of Primates. Very few primate fossils are known between the late Eocene and early Oligocene, when there was a sharp change in global climate. Several other mammal groups have a similar gap during this time period.