How would you like to see a real leaf that might have been touched by a dinosaur---a leaf that's more than 100 million years old? It seems almost impossible, but such leaves really have been found! ...
The forests that turned to coal
> Today, horsetails are small. But millions of years ago, they were as > tall as trees. > > horsetails The air was hot and wet. The ground was soft and oozy. Dragonflies with wings as long as...
The snaky plants
About 400 million years ago, the plants on land looked like snakes with stalks on their backs. The long, snaky, rootlike stems of these plants curled over the ground. Tiny hairs grew out of the...
The soil makers
Hundreds of millions of years ago, all the land was just bare, hard rock, sand, or clay. Now, soil covers most of the land. Where did the soil come from? Plants and weather made it. The first living...
The plants that conquered the land
Scientists think that the first living thing on land came out of the water about 500 million years ago. The sea was full of living things. There were jellyfish, sponges, worms, and small, crablike...
The air makers
Most scientists think that the first tiny sea plants made it possible for life to come onto the land. To live, plants and animals must take in a gas called oxygen. The tiny sea plants and animals of...
The first plants
> Long ago, the land was empty. All the plants and animals lived in the > water. > > They looked like tiny blobs of jelly. Many hundreds of millions of years ago, the world was a scary place!...
Plants of Long Ago
The plants that grew on earth hundreds of millions of years ago didn't look much like the plants we see around us today. Scientists have learned a great deal about what the world was like long ago....
