Say, Thomas (1787-1834), a United States naturalist. He wrote the first major American works on insects (American Entomology, 3 volumes, 1824-28) and shells (American Conchology, 2 volumes, 1830-34).
Naturalists are biologists who study the history and evolution of nature. Naturalists explore the scientific terms and processes that provide us with a key to understanding life.
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