Secret of the Sahara
This is a story about a strange discovery made in the great Sahara Desert. In 1933 a French officer ___WAS_RIDING___ in the Sahara through a deep canyon in a mountain range where no other European had ever been.
Suddenly he saw that the walls of the canyon ___WERE_COVERED___ with age-old carvings and paintings of strange unknown animals.
News of the discovery soon ___BROUGHT___ many experts of all kinds to the place.
Dinosaurs lived on our planet millions of years ago. Some of them were very big. Now only their giant bones and footprints ___ARE_FOUND___.
Millions of years ago, the world did not look like it does today. Many of the animals that walked the land had bodies low to the ground and legs on the sides of their bodies. As time passed, the land changed. The animals changed too. Some of the animals now had legs under their bodies. They moved ___FASTER___ than the other animals.
___THESE___ new animals were the first dinosaurs. They came in all sizes. Some were about 75 feet long.
The dinosaurs all died about 65 million years ago. Some people think that it got too cold for the dinosaurs. Other people think the dinosaurs ___COULD_NOT___ find enough food to eat. Still, no one is sure why the dinosaurs all died.