Proof of evolution that you can find on your body

[ErikJ]

Forty-two percent of Americans say that humans were created in their present form within the past 10,000 years — a percentage that hasn't changed much since 1982, when Gallup started polling views on evolution.

Several lines of evidence, from the fossil record, comparative anatomy, and genetics, tell another story. But you don't have to read all the research to find signs of our evolutionary history — you can see it in the vestigial structures in each of our bodies, like the third molars that no longer fit in our mouths. For a few other examples, check out the video above.

[Cracklin Charlie]

1. Kick for later.

[pnwmom]

2. Some people don't have those? That was news to me.

I'd read about those but hadn't seen the photos, so I wasn't sure what they were talking about.

I guess I have those "vestigial structures." And all this time I thought they did something.

[ErikJ]

8. I have that tendon on my right wrist but not on the left.

Which was a surprise to me. I wonder if it has anything to helping right-handed dexterity.

[Chellee]

12. I don't think so.

Because I'm right handed, and I have it on my left hand, but not on my right.

[Lucinda]

3. KNR

[Urchin]

4. Third Molars

The problem with those molars might be from being raised on an industrial Western diet, which being unnatural causes a lifetime of health problems with teeth (cavities being another) and the rest of our anatomy.

"In the 1900s, Dr. Weston A. Price did extensive research on the connection between oral health and diseases. He discovered native tribes, with their traditional diets, that were almost 100 percent free of tooth decay. He came to the conclusion that dental and overall health lie in nutrition. Fortunately, this discovery is practiced by holistic dentists nowadays whom understand that when you supply enough nutrients to the jaw bone during its development, all 32 teeth will have proper space in your mouth without crowding. This means that proper nutrition is the key behind trouble free wisdom teeth."

I suspect that in addition to Dr. Price's idea of proper nutrition, that eating harder to chew foods (instead of modern industrial mush) might also contribute to the larger jaws and trouble-free wisdom teeth of hunter-gatherers.

Another factor could be whether an infant is breast fed or not.

[Major Nikon]

6. Most of Dr. Weston A. Price's work has been soundly discredited

...even during his own time.

[trixie]

5. My dentist told me a couple more

People being born without appendix, tonsils. I learned in jr. high science about how people will only have 4 toes. You can see how many people have a non functioning baby toe.

Oh, can I get crazy? A theory of the Greys (aliens) is that they are us way in the future and their bodies have adapted to larger brains and larger eyes, smaller frames and faces..........They come back because they can no longer reproduce. Crazy but I like it!

[Major Nikon]

7. One of my wisdom teeth never developed

So it's already starting to happen!

[trixie]

9. enjoy the link

wisdom teeth

Other stuff

[Spitfire of ATJ]

10. Now we can call everyone without one a mutant.

[jtuck004]

11. Feed your inner monkey. n/t

[spike jones]

13. This may explain my third nipple. .n/t

[ErikJ]

14. Why do men have nipples?

Thats another one for proof of evolution. Or against Creationism. Why would god create man with nipples? All male mammals have nipples in fact which shows we are related. In mammal embryos they all start out as female body plan. Then the Y chronmosome's hormones kick in turning off further development of the female features.

[spike jones]

15. It was explained to me

that men have nipples because women need them. Sometime the y chromosome's hormones do not kick in all the way and people have various traits of both sexes, physically and mentally. The book "Galileo's Middle Finger" is good in explaining intersex.

[HereSince1628]

16. No, all of us do not start out as females, we all start out -undifferentiated- bipotential state

There are -really- good but long videos on the internet about the development of the male and female reproductive tracts.

We don't go from undifferentiated to female to male. We go from undifferentiated to either sex. Also lots of power points on this here are some useful slides:

[spike jones]

17. The point of the referenced book

was that people can end up with parts of both sexes in their bodies. How it starts out, I don't know. That is after conception. I do know how it starts out before then.

[HereSince1628]

18. The pictures I provided -are- after conception.

Development of the reproductive tract doesn't begin until after conception.

I'm not sure what you are talking about.

[spike jones]

19. Intersex

https://en.wikipedia.org/wiki/Intersex

Intersex, in humans and other animals, describes variations in sex characteristics including chromosomes, gonads, or genitals "that do not fit typical binary notions of male or female bodies". Such variations may involve genital ambiguity, and combinations of chromosomal genotype and sexual phenotype other than XY-male and XX-female.

Also this thread has way too many big words for me.
I also see you were responding to Erij not me. Sorry.

[ErikJ]

20. The Y chromosome blocks further development of female structures.

at 2 months after conception.

Humans are mammals, which means they are warm-blooded, hairy vertebrates that breathe air and produce milk for babies. Up until genes on the Y-chromosome kick in after week 4 in development, however, male and female embryos develop identically. The primary formation of mammary glands and tissues are highly conserved across mammalian species and begin to form early in development, before the gender-specific processes take place.

The embryo’s gonad appears around week 4 of development and is considered bipotential or indifferent, meaning that gender is not playing a role in development at that point. This will continue for a few more weeks. During week 8, germ cells start to undergo sex determination. Males will then secrete factors that block the development of female ducts and structures. Once the male embryo produces testosterone, the hormone can influence other sex-specific traits around the body.

Men having nipples doesn’t really have any evolutionary advantage, but it usually doesn’t hurt anything either. As a result, the trait was never selected against.

http://www.iflscience.com/health-and-medicine/why-do-men-have-nipples/