Scientists unearth the skeleton of a terrifying 16-foot-long “top tier” sea predator from the Jurassic period

Did ancient whales walk on four legs and move like giant otters? - Quora

Pakicetus, Georgiacetus, Phiomcetus and Remingtonocetus

Squelette partiel de Pakicetus (Éocène inférieur, Pakistan) constitué... |  Download Scientific Diagram

Top 5 Deadliest Predators of All Time - Owlcation