What do scientists think about the common ancestor of whales and hippos?

Answer 1

Scientists believe that the common ancestor of whales and hippos was a four-legged, semi-aquatic mammal that lived around 50 million years ago. This animal had adaptations that allowed it to swim and walk on land, and over time, it gradually evolved into the whales we know today. The evidence for this theory comes from fossils of animals that show a mix of land and sea adaptations, and genetic studies that suggest that hippos and whales are closely related. Overall, the idea of a common ancestor for whales and hippos is widely accepted in the scientific community.