Early ancestors of modern whales once walked on four legs. One relative of whales was Pakicetus, which lived 50 million years ago.

A comparison of the third molars from three species of Pakicetus as viewed from the back. (From Cooper et al., 2009) Crack open just about any recent popular overview of evolution (namely Why ...

Well, that made it the oldest fossil whale anybody ever found. - [Narrator] It was groundbreaking, and as they discovered more pakicetus fossils, they realized something else: this whale could walk.

Whales evolved from Pakicetus, an ancient mammal found in Pakistan Pakicetus, a goat-sized creature, lived in present-day Pakistan, 50 million years ago.

Much like Pakicetus in the history of early whales, Pezosiren embodies a critical transitional period in the evolution of manatees and dugongs, yet the place where this amphibious sea cow was ...

Pakicetus' descendants continued to adapt, leading to the evolution of Ambulocetus, which lived between 50 and 48 million years ago. Ambulocetus was well-suited for life both on land and in the water.

9 fascinating facts about whales you should know Once four-legged land animals, whales evolved from ancestors Pakicetus, which lived along ancient Pakistani shores ...