Do you know that plants live in communities just as people clo? A forest is a plant community of many trees. A pond is a community of many water plants. Prairies, deserts, and oceans are plant...
Plant Ways
So W. W. Watt Have you ever wondered why leaves change color in the fall? Or why some flowers smell nice and some don't? Or what pine cones are for? Do you know why some trees stay green all...
Sleeping life
It is the flowers' nighttime . . . In many parts of the world it is winter, and the ground lies cold and hard beneath snow and frost. The sleeping trees are brown and bare. The dry, dead stems of...
Vanishing Animals
The great auk is extinct. You have never seen one of the big, funny-looking birds called dodos. They are extinct. That means there aren't any dodos alive anymore. But 400 years ago, there were...
Domestic Animals
The chicken is a domestic animal. Domestic animals are the animals you see on farms and ranches and in people's homes. Most domestic animals are useful to people in some way. From some domestic...
People and Animals
Some people have jobs working with wild animals! These people work in zoos, parks, animal hospitals, museums, and laboratories. Some even work right in the places where wild animals live. ...
Animals of Long Ago
Imagine animals like fish with legs. Imagine trees like giant feather dusters. That's what some animals and trees looked like, once. Just as you change as you grow older, the world changes and the...
Living Together
> A monarch butterfly caterpillar can live wherever there are milkweed > plants. Everywhere in the world, different kinds of plants and animals live together. Some animals eat plants they live...
The Animals’ World
We see, hear, smell, and feel the world around us. So do animals. But many animals do these things in different ways. Some kinds of animals can't do all of them. Some kinds of animals do them better...
Animal Ways
> A harvester ant goes to work every day. Why do birds sing? Why do ants rush about so busily? Why does a mandrill sometimes seem to yawn when it sees another animal? Are there reasons for what the...