Classification of Life, 2nd EditionTwenty-First Century Books, 1 янв. 2013 г. - Всего страниц: 78 How are polar bears related to pandas? For thousands of years, philosophers and scientists have tried to organize and understand, or classify, the relationships among Earth's animals and plants. Early classification systems were cumbersome and inconsistent. In the late 1720s, Carl Linnaeus began developing a classification system to describe relationships among all living things, including animals, plants, fungi, and bacteria. This organization, called the tree of life, is still the basis of the classification system used by scientists today. |
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... insects, and other small creatures that weren't studied much in the past. But once in a while, scientists reclassify well-known animals, such as birds, mice, and monkeys. For as long as humans have lived on Earth, we've wanted to ...
... insects and spiders, (9) jellyfish, (10) sponges, and (11) plants. Aristotle sorted about five hundred different organisms into these groups. Before Aristotle classified an animal, he observed its body structures closely. He also ...
... insects had an even bigger problem. Many insects had (and still have) different com- mon names at different stages of life. Why? Young insects (larvae) often look quite different from their parents. They eat different foods and may live ...
... insects, Ray considered both the form and the function of various body parts. He believed the big picture was more important than any single feature. Scientists would eventually adopt Ray's classification methods. John Ray was the first ...
... number and posiclasses, he tion of stamens (male reproductive organs) inside their flowers. He divided the animal kingdom into six classes: mammals, birds, amphibians, fish, insects, and. The Father of Classification 19.
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Classification Meets Evolution | 26 |
Adding New Kingdoms | 34 |
The Birth Of Cladistics | 40 |
Kingdoms Or Domains? | 49 |
Glossary | 62 |
Biographies | 66 |
Source Notes | 71 |
Selected Bibliography | 72 |
Further ReadingWebsites | 74 |
Index | 76 |
Photo Acknowledgments | 78 |
Back Cover | 80 |
Timeline | 64 |