A similar topic but not this link[0] was mentioned here on HN awhile back. An aboriginal man had a lock of hair which had passed down over many generations, and some of which was allowed to be carbon dated. It was old, I don't remember the specific age, but it was at least BC old. And this lock of hair had been passed down from one generation to the next. It showed his people had been in Aus for a very long time and they predate first humans in North America.
Just looking at this article Aborigines had been in Australia for 20k - 30k years before the White Sands footprints were made. I'm sure there's footprints of similar "vintage" there. It would be curious to compare them.
We're 98% genetically identical to all other primates, so a gene combination controlling lengths of appendages is buried probably in just a handful of mutations embedded in that 2%.
Just looking at this article Aborigines had been in Australia for 20k - 30k years before the White Sands footprints were made. I'm sure there's footprints of similar "vintage" there. It would be curious to compare them.
[0] - https://theworld.org/stories/2016/08/01/lock-hair-dates-abor...