In 1798, �tienne Geoffroy Saint-Hilaire noted on vestigial structures:
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The presence of these kind of vestigial structures is known as an atavism.
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Scientific literature concerning vestigial structures abounds.
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Charles Darwin was familiar with the concept of vestigial structures, though the term for them did not yet exist.
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Vestigial structures are often selective pressure for the removal of parts that do not contribute to an organism's fitness.
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One study complied 64 examples of vestigial structures found in the literature across a wide range of disciplines within the 21st century.
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Beechdrops does contain very small alternate, scale like leaves, which are a vestigial structure from a common ancestor which was photosynthetic.
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His colleague, Jean-Baptiste Lamarck, named a number of vestigial structures in his 1809 book " Philosophie Zoologique ".
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Vestigial structures have been noticed since ancient times, and the reason for their existence was long speculated upon before Darwinian evolution provided a widely accepted explanation.
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:Although the list of human vestigial structures is still more or less the same, the relative usefulness of certain structures on the list is a subject of debate.
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