The eye sockets faced sideways. The skull was much longer than it was wide. There was a projecting ridge along the top of the skull. Four of the teeth were long and pointed. The jaws could move sideways as well as up and down.
I gave my students this multiple choice question: A girl found the skull of an animal. She did not know what the animal was but she was sure that it preyed on other animals for its food. What clue led to this conclusion?

Only one answer is correct among these 4 choices:
- The eye sockets faced sideways.
- The skull was much longer than it was wide.
- There was a projecting ridge along the top of the skull.
- Four of the teeth were long and pointed.
- The jaws could move sideways as well as up and down.

Could you tell me which one is correct?

Four of the teeth were long and pointed.