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Aristotle was the father of zoology, and Theophrastus was the father of botany. In the fourth century BC, both men were Greek, and their lives mainly intersected. Science, mathematics, philosophy, and other fields of human knowledge saw tremendous advances during this time, with the majority of these advances focused on the Greek city state of Athens, which both men had ties to. Theophrastus and Aristotle are regarded as the pioneers of these subjects since they were among the first to examine in detail a variety of facets of plant and animal life.

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Aristotle was a Greek philosopher, he is also known as the father of zoology. He also gave the first classification of animals.Theophrastus is known as the father of Botany or plant biology. Theophrastus was also a student of Aristotle. He wrote the book titled The History of Plants and The Cause of Plants.