Posted on 12/17/2022 9:23:09 AM PST by SunkenCiv
The ancestors of humans may have begun moving on two legs to forage for food among the treetops in open habitat, researchers have suggested, contradicting the idea that the behaviour arose as an adaptation to spending more time on the ground.
The origins of bipedalism in hominins around 7m years ago has long been thought to be linked to a shift in environment, when dense forests began to give way to more open woodland and grassland habitats. In such conditions, it has been argued, our ancestors would have spent more time on the ground than in the trees, and been able to move more efficiently on two legs.
But now researchers studying chimpanzees in Tanzania say that trait may have different origins...
Writing in the journal Science Advances, the researchers report how they spent 15 months studying 13 chimpanzees living in Issa Valley in western Tanzania, an environment similar to that experienced by our ancient ancestors.
The results reveal that these chimpanzees spent a greater proportion of their time on the ground, and in movement, when in an open environment of woodland and grasses than in densely forested parts of the same area.
However, even in the open environment, the proportion of time the chimpanzees spent on the ground was similar to that previously recorded for other populations of the apes living in densely forested areas, including Gombe and Mahale...
The team says that while the study cannot prove that our human ancestors showed the same patterns of bipedal behaviour, it calls into question common assumptions of how humans ended up walking on two legs, and suggests that trees continued to play a role in our evolutionary story even as the environment shifted.<
(Excerpt) Read more at theguardian.com ...
Mathematically speaking, statistically speaking, probabilistically speaking,
= = =
I detect a lot of words exceeding the limit on number of syllables for white supremacist communication.
Excuse me, make that ‘red neck talk.’
Don’t stop there....
Nothing is responsible for everything...
non-life - produced life
randomness produced precision
chaos produced order
vacuum programmed information
and time invented itself when it ‘banged’ into existence.
Time, Space, Matter all showed up at once from nothing.
All of this you have to believe if you believe in evolution.
This requires so much faith that I’d rather just believe the guy that hung to death for me on a tree. It makes much more sense.
My physical therapist is great and does wonders for me.
Most problems stem from the feet, and he said that 90% or more of people have bad feet that then causes all the other alignment problems.
“Somewhere in our evolution it never got better - we weren’t made to walk on two feet.”
I replied “Or God never meant for us to wear shoes.”
“Good point!”
Where is the like emoji
“Most of the time that they are on two legs is in the trees,” said PielThere's a vast difference between walking on a rounded than flat surface -- how would this explain the evolution a shortened toes?
Four-legged critters run faster than two-legged critters, so there. :^)
I point to the fossilized remains of the slowest of the 4footers...
:]
Even three limbs make running faster than two, and all one needs is living primate species.
Bipedalism came from running from lions, tigers and bears.....................
Don’t stop there....
Nothing is responsible for everything...
non-life - produced life
randomness produced precision
chaos produced order
vacuum programmed information
and time invented itself when it ‘banged’ into existence.
Time, Space, Matter all showed up at once from nothing.
All of this you have to believe if you believe in evolution.
This requires so much faith that I’d rather just believe the guy that hung to death for me on a tree. It makes much more sense.
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