-
Living on land and sustained mainly on a diet of plants and smaller animals; Pakicetus was the earliest known ancestor of the ancient whale. Pakicetus mysteriously vanished from the evolutionary chain when s/he became extinct due to rapidly declining sources of food on land.
-
-
Drinking fresh water, Ambulocetus stayed close to land; rivers and lakes. This evolution shows development of flippers and flatter tails for swimming.
-
Kidneys adapt to filter salt-water, making Rodhocetus the first ancestor of the modern whale to enter the oceans.
-
-
Resembling a modern dolphin, Dorudon migrate to polar seas to avoid the constant threat of Monster sharks.
-
End.
