Monarchs in the western part of the United States migrate for the winter to California, where they gather mostly among fragrant eucalyptus trees, which provide hospitable living conditions. Monarchs from the eastern part of the United States, by contrast, winter in Mexico. Pelton said the count of eastern monarchs had not been released. Pelton warns that if nothing is done to preserve the western monarchs and their habitat, the butterflies could face extinction.
In a study , scientists estimated that the monarch butterfly population in western North America had a 72 percent chance of becoming near extinct in 20 years if the monarch population trend was not reversed.
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Pelton said. They pollinate flowers, too. It eats these all the time. It first eats the leaf that it was born on. This is the eating and growing stage. A caterpillar grows really fast. This is because they eat a lot. A caterpillar is really small when it is born. It starts to grow fast. This is because it eats all the time. It grows so fast that it becomes too big for its skin.
So the caterpillar has to shed its old skin. It then gets new skin. Caterpillars shed their skin four or more times while they are growing. A caterpillar shedding its outgrown skin is called molting. Caterpillars do not stay in this stage very long. While they are in this stage, all they do is eat.
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Stage three is the chrysalis. This is when the caterpillar is done growing. The caterpillar makes a chrysalis. Another name for a chrysalis is a pupa. It is mostly brown or green. It is the same color as the things around it. Things like the trees, leaves, or branches.
This is so that other animals cannot see it. This protects them. This keeps them from getting hurt.
This is the resting stage. It also is the changing stage.
The caterpillar starts to changes. It starts to turn into a butterfly. It starts to look different. Its shape starts to change. It changes quickly. It then turns into a butterfly. All this happens in the chrysalis. This does not take a long time. In stage four, the chrysalis opens. Soon a butterfly comes out. A butterfly is sometimes called an imago.
It is also called an adult. Butterflies are very colorful. When the butterfly first comes out its wings are damp. The wings are also soft. The wings are folded against its body.
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The butterfly is also very tired. So the butterfly rests. Once the butterfly has rested, it will be ready to start flying. It will start to pump blood into its wings. This is to get them working and flapping.
Each double-page spread consists of concise, yet lively and readable text and numerous excellent-quality captioned photos, drawings, and diagrams. Butterflies , by Seymour Simon. Learn where to find butterflies and moths, how to observe them in nature, and how to plant your very own butterfly garden! Award-winning science writer Seymour Simon invites readers to explore the world of butterflies and moths with fascinating facts and stunning full-color photographs. Making the yearly trip from the Northern United States and Canada to the Oyamel forest of Mexico is no easy task, and it takes five generations of butterflies in order to do so.
Battling cold temperatures and the threat of starvation, these beautiful insects complete an almost 3, mile journey over the course of two months, only to have to turn and around and head back home.
Williams and Carter R. Publisher: Knopf July 21, Filled with succinct descriptions and dazzling photographs, the National Audubon Society Pocket Guide to Familiar Butterflies of North America is designed to be compact enough for nature-lovers to easily bring along when observing butterflies. This streamlined volume contains: a simple field guide identifying 80 of the most widespread butterflies in North America and a complete overview of observing butterflies, covering basic identifying field marks and practical tips for observing and distinguishing different butterflies.
This pocket guide is packed with information; bright photographs capturing the butterflies perched with their wings spread and closed; specific descriptions of each species' important identifying characteristics, life cycle, habitat and range, line drawings depicting the basic butterfly anatomy, a description of major butterfly groups and a glossary of technical terms.
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