The episode opens up with one probably the evolution contingency's favorite examples of an alleged transformation--from land mammals to the whale. Fossils of Pakicetus, Ambulocetus, Rhodocetus, Dorontid, and Basilosaurus are shown to account for this transition. Pakicetus is represented by a small portion of a skull, a far cry from a solid transitional fossil. Though Ambulocetus is represented in the documentary as a complete fossil of an aquatic mammal with legs, this is an interpretory stretch and embellishment upon the quite fragmented Ambulocetus skeleton which was actually found. Rhodocetus is represented in the series by a mere skull. Though Basilosaurus is a complete whale-like fossil with how important is it really for accounting for the transition. Many have suggested those "legs" aren't vestigial but played some role in copulation. Perhaps they even had a swimming function. So what have we been shown here? 2 skulls, one fragmentary skeleton not necessarily transitional whatsoever, and a full aquatic whale type with small hind legs. From this data we have our number one example of an alleged evolutionary transition.