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| | ZOOLOGY, |
 | | Although Darwin recognized the importance of heredity in understanding the evolutionary process, he was unaware of the work of a contemporary, the Austrian monk Gregor Mendel, who first formulated the concept of particulate hereditary factors—later called genes. |
 | | Vertebrate zoology, the study of animals with backbones, is divided into ichthyology (fish), herpetology (amphibians and reptiles), ornithology (birds), and mammalogy (mammals). |
 | | Evolutionary zoology, which draws on all of the fields just mentioned, is concerned with the mechanisms of evolutionary change—speciation and adaptation—and with the evolutionary history of animal groups. |
| www.history.com /encyclopedia.do?vendorId=FWNE.fw..zo009100.a (1494 words) |
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