Question

What do scientists think about the common ancestor of whales and hippos?(1 point)
Responses

The animal is still alive today.
The animal is still alive today.

The animal lived in water.
The animal lived in water.

The animal had two limbs.
The animal had two limbs.

The animal lived millions of years ago.
The animal lived millions of years ago.

Answer 1

The animal lived millions of years ago.

Scientists say the whale–hippo common ancestor was a terrestrial (likely semi‑aquatic) mammal that lived tens of millions of years ago (Eocene), from which whales later evolved aquatic adaptations.