| A | B |
|---|
| fossils | remains of something that lived long ago |
| paleontologist | a scientist who studies things that lived long ago |
| skeleton | a full set of bones |
| extinct | when a living thing dies out so that there are no more of its kind living on Earth |
| endangered | in danger of becoming extinct |
| dinosaur | an animal that is extinct |
| meat | A dinosaur skeleton with long, sharp teeth tells us the dinosaur ate ____. |
| eggs | Some dinosaurs laid ____. |
| clues | Fossils give _____ about extinct animals. |
| tooth | A ______ or a print of a plant can become a fossil. |
| fly | Some dinosaurs could ____. |
| size | A dinosaur skeleton can tell us about the dinosaur's ______. |
| water | Many dinosaurs lived in ____. |
| safe | We can protect endangered animals by keeping them in a _____ place. |
| bones | Scientists compare ______ of living animals to fossil bones to figure out how the dead animals lived. |
| die | Before an animal becomes a fossil, it must _____. |
| bald eagle | The humpback whale and the ______ were saved from near extinction. |
| changes | Earth _____ can hurt animals and people. |
