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- Newsgroups: talk.origins
- Path: sparky!uunet!digex.com!huston
- From: huston@access.digex.com (Herb Huston)
- Subject: Re: Bad design and vestigial organs
- Message-ID: <By4oI3.Hv1@access.digex.com>
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- References: <MMF=kw-@engin.umich.edu> <YMF=z4-@engin.umich.edu> <1992Nov21.013411.17810@s1.gov>
- Date: Sun, 22 Nov 1992 17:27:38 GMT
- Lines: 23
-
- In article <1992Nov21.013411.17810@s1.gov> lip@s1.gov (Loren I. Petrich) writes:
- > Human toes. Our feet have toes, one of which is big and
- >slightly separated from the others. For walking, there is no special
- >need of having a split front end of the foot; it should not be
- >surprising that the toes are small. But they are there, and in most
- >primate species they are much more prominent. In some species at
- >least, the big toe points outward, just like a thumb. Interestingly,
- >in some early hominid species, the toe bones were relatively longer
- >than in our species.
-
- Nonrotation of the human big toe is a neotenous characteristic. In fetal apes
- the big toe is situated as our is but rotates sometime before birth.
-
- > Wisdom teeth. Our jaws are a bit small for these late-erupting
- >teeth; some people have them, while others do not.
-
- And when they try to erupt, they're prone to impaction.
-
- There's also the vermiform appendix. How odd to have a vestigial cellulose-
- digesting organ in an animal whose gut can't digest cellulose.
-
- -- Herb Huston
- -- huston@access.digex.com
-