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Discussion and Debate
Discussion and Debate
Physical & Life Sciences
Creation & Evolution
The Coccyx
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<blockquote data-quote="The Barbarian" data-source="post: 69449946" data-attributes="member: 7989"><p>A few errors in the OP.</p><p>1. "Vestigial" does not mean useless. And that's from the start. Darwin himself mentioned this fact in <em>The Origin of Species</em>.</p><p>2. In Utero, humans have about 10 vertebrae in their tails. These are absorbed and there are only 4 left in most people at birth.</p><p>3. The coccyx is not a necessary organ. Coccygeal agenesis is not uncommon and unless part of the sacrum is also missing, it is generally without symptoms. Most people who have it, never realize it, unless they take an x-ray for something else.</p><p>4. Branchial arches (which form gill supports in fish) have other functions in humans. The same tissues that support gills produce our jaws, parts of our ear, and skull. They are vestigial for gills, but of course (as Darwin mentioned) have adapted to other uses. They only appear to be gill slits in human embryos, and soon develop into other structures. The only reason that we have what look like "gill slits" is that our development is constrained by our evolutionary history, and uses older structures to make new ones.</p></blockquote><p></p>
[QUOTE="The Barbarian, post: 69449946, member: 7989"] A few errors in the OP. 1. "Vestigial" does not mean useless. And that's from the start. Darwin himself mentioned this fact in [I]The Origin of Species[/I]. 2. In Utero, humans have about 10 vertebrae in their tails. These are absorbed and there are only 4 left in most people at birth. 3. The coccyx is not a necessary organ. Coccygeal agenesis is not uncommon and unless part of the sacrum is also missing, it is generally without symptoms. Most people who have it, never realize it, unless they take an x-ray for something else. 4. Branchial arches (which form gill supports in fish) have other functions in humans. The same tissues that support gills produce our jaws, parts of our ear, and skull. They are vestigial for gills, but of course (as Darwin mentioned) have adapted to other uses. They only appear to be gill slits in human embryos, and soon develop into other structures. The only reason that we have what look like "gill slits" is that our development is constrained by our evolutionary history, and uses older structures to make new ones. [/QUOTE]
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