Some ancient animals and some modern animals walk on four legs. Most ancient animals and most modern animals hunt animals for food. The same animals that lived long ago also live today. All animals can walk.
I gave my students this multiple choice question: A scientist compares ancient animal tracks to modern animal tracks. Which conclusion is the scientist most likely to reach?

Only one answer is correct among these 4 choices:
- Some ancient animals and some modern animals walk on four legs.
- Most ancient animals and most modern animals hunt animals for food.
- The same animals that lived long ago also live today.
- All animals can walk.

Could you tell me which one is correct?

Some ancient animals and some modern animals walk on four legs.