Banjo stole my thunder. I was going to say that in cattle showing, most of the successful people reckon that what wins the blue ribbon is 30% genetic, & 70% feeding. You can't do it with out genetics, but no amount of genetics can do it, without nutrition.

I don't think it's stopped happening yet either, although we are probably bumping up against our genetic limit, with hybrid vigour supplying some of the last impetus.

My lady gets annoyed when I suggest that the US dominance of track & field athletics, for many years, is due to hybrid vigour. Apparently we can't apply stock breading terminology to humans in her eyes.

However, what else could you call it when you mix most of the genetic material from Africa, & Europe, give it a stir, & let it bread? What ever you call it, it sure worked in improving human physical performance.

So yes Belly, it's partly evolution, but that happened many years ago. The fact that we have now added nutrition has allowed it to be expressed.

Agree hasbeen with every word too.
While it may be not every ones cup of tea if we did mix,remember that song? one big cup mixing us to one? coffee colored people by the score?
We would be, not us but future generations, better for it.
Lack of food, different foods, may have driven evolution a bit faster in the past too.

Belly, nutrition seems to be the major answer.
I saw a report a while back that the Chinese are getting significantly
bigger due to improved diet.

Also, I am taller than my father and my three sons are taller than me.
However my grandfather was taller than my father, so not sure what that
means.

I thought the Americans being rather good at sport had a lot to do with their more sophisticated strains of steroids.

Girls used to begin menstruating around age 13 and now around 10 is quite common. Hormones in our food I reckon. Friend told me how some chicken farmer gave him some pellets for his chooks and they ended up not being able to walk they were so huge compared to the chooks he had kept for eggs that he didn't feed the pellets to.

Note to Anti: Young girls don’t get PMS, wonder why only older females develop it.

OLO has a spell checker??

i will restrict my comments to your first post

do miners usually take off their boots before walking home?
maybe those left over boots served no ones purpose
[ie the 'usable' sizes were taken home with them]

there is a thing called hybred vigure
where outcrossing say a welsh miner or short stature..with say a mongolian with short stature...can produce a hybred...that is taller than both

add in the facts of nutrition
runts are runts because they were the last to get a feed

evoplution generally works..[is said to work]..over longer periods of time..but of course they are talking about macro evolution..as im apes lol becoming..evolving into man...[but largly macro evolution is the scam]

micro evolution..is the more true form of evolution
but is affected by things like hybred vigour
and resessives traits appearing within limited breeding populations

these ressesive traits often disappear when cross bred back to a wild type that reflectes the genomic mean..this can also appear in conjunction with hybred vigure..

there is also the other issue about size mattering
tall people dont generally make good miners
short people are favoured...usually..the mines are very low...[it costs money to mine out non ore..so most mines were only as high as the ore body that was being mined

meaning kids were prefered..[and worked cheap]
and did as they were told

in short the question..reminds me of a school
see how all the shoes ion front of the 3 rd grade are small
is this evolultion?

no thats just the way it was
thats the average[mean] size of its workers