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Anthropology

GreenWave

(12,516 posts)

9. Because we do not eat enough roughage as nature intended

Reply to Judi Lynn (Original post)

Tue Feb 17, 2026, 06:52 AM

Feb 17

our jaws do not become prognathous enough to allow our back molars to sink in properly.

This chewing must take place in the very early years while bones are still growing.

Remembering my anthro lecture from Dr. Gavin

https://historicimages.com/products/nob16925

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Highlight:

Only Humans Have Chins -- and They Emerged as an Evolutionary Accident [View all] Judi Lynn Feb 17 OP

Fascinating! Kira_Thomsen-Cheek Feb 17 #1

;-{).... Goonch Feb 17 #7

First thing I thought of. Thanks for posting. twodogsbarking Feb 17 #10

Very interesting article. I must say I have never given brer cat Feb 17 #2

This led me to NJCher Feb 17 #3

I'm a big fan of evolutionary biologist Stephen Jay Gould William Seger Feb 17 #4

"The chin is an Evolutionary Accident"...... AZ8theist Feb 17 #5

Except for tRump's DNA. BigmanPigman Feb 17 #6

So I wonder how I would have landed when I fainted and went straight forward and on my chin Maraya1969 Feb 17 #8

Because we do not eat enough roughage as nature intended GreenWave Feb 17 #9

Keep your chin up. How dat? twodogsbarking Feb 17 #11

;-{)...... Goonch Feb 17 #12