alphynix:Whalevolution Month #03 – PakicetusPakicetus inhabited northern Pakistan around 50-48 milli
alphynix:Whalevolution Month #03 – PakicetusPakicetus inhabited northern Pakistan around 50-48 million years ago, and may have reached up to 2m in length (6′6″). It had upwards-facing eye sockets on the top of its head similar to those of crocodiles, suggesting it might have hunted in the same sort of way – waiting in water almost completely submerged in order to ambush prey.While its limb bones were very dense to reduce buoyancy, they were still built more like those of terrestrial animals, and it probably moved much like a hippo “walking” underwater. Its sense of hearing would also have been much better in air, as it lacked the lower jaw fat pads that later whales developed for directional hearing underwater -- source link