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You Know The Going Theory For Why Our Early Ancestors Started Standing Upright? Yeah, About That…
Posted: 20 February 2013 09:03 AM   [ Ignore ]
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The theory goes that as the grasslands spread our ancestors were forced out of the forests and into the savannahs and evolution took hold, favoring a more upright posture because we could see further and so on.  Being upright wasn’t really an advantage in the forests because the lousy trees blocked line of sight.  The two developed at more or less the same time.  Makes sense.

Well, according some new research by one Dr Feakins of USC, the grasslands were there in one form or another long before our ancestors ever started walking upright.

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[ Edited: 20 February 2013 09:16 AM by Dead Monky ]
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Posted: 20 February 2013 10:19 AM   [ Ignore ]   [ # 1 ]
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Yeah, I read about it a while back. I am beginning to lose track of all the theories on the origins of bipedalism.

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Posted: 20 February 2013 10:39 AM   [ Ignore ]   [ # 2 ]
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hmmm, verry interesting. 

More like kicking one theory in the butt.

I’ll be curious to see how this pans out.

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Posted: 21 February 2013 09:30 AM   [ Ignore ]   [ # 3 ]
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Oh come on, George.  There are only about a dozen distinct theories and dozens of variations on each of those.  Why the trouble keeping them straight?

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Posted: 21 February 2013 10:37 AM   [ Ignore ]   [ # 4 ]
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Chris Stringer writes about that theory in his new book but doesn’t use it as the singular cause of bipedalism. Personally, I see a number of causes relating to standing upright, as in being able to run to the prey carcass making us more efficient food gatherers. And running from predators.


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Posted: 21 February 2013 10:46 AM   [ Ignore ]   [ # 5 ]
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There is also a theory (supported my some evidence—they all are to a certain degree) that we, apes, went from walking on all four to becoming bipedal, to switching back to walking on all four, after which some apes (us) went back to bipedalism. Crazy stuff!

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Posted: 22 February 2013 05:26 AM   [ Ignore ]   [ # 6 ]
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I see it as more evidence that there is no plan or design “out there” for life.

Everything is just a load of weird s*** that happens. grin

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Posted: 22 February 2013 06:43 AM   [ Ignore ]   [ # 7 ]
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Yes, “shit happens” is the formula of the theory of everything. Maybe God does play dice after all.

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Posted: 22 February 2013 11:55 AM   [ Ignore ]   [ # 8 ]
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The theory goes that as the grasslands spread our ancestors were forced out of the forests and into the savannahs and evolution took hold, favoring a more upright posture because we could see further and so on.  Being upright wasn’t really an advantage in the forests because the lousy trees blocked line of sight.  The two developed at more or less the same time.  Makes sense.


The problem with her theory is that she failed to take into account that a bipedal species had already been found in the forestlands. It was Ardipithicus Ramidus. The remains date to 4.4 million years BCE although some paleoanthroplogists speculate that the area was mixed grassland and forest. And just when something makes sense. Science, go figure!


http://humanorigins.si.edu/evidence/human-fossils/species/ardipithecus-ramidus

 

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Posted: 25 February 2013 08:47 AM   [ Ignore ]   [ # 9 ]
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And, you know, theropod dinosaurs (and some others) were jogging about on two legs way, way before that even.

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Posted: 25 February 2013 09:24 AM   [ Ignore ]   [ # 10 ]
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And, you know, theropod dinosaurs (and some others) were jogging about on two legs way, way before that even.

Yeah, but they had those stubby little forelegs,making push ups impossible so they all died out due to heart disease by eating too much red meat!


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Posted: 25 February 2013 09:27 AM   [ Ignore ]   [ # 11 ]
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I thought God killed them all and buried them all before making us as a test of our faith.

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Posted: 25 February 2013 09:37 AM   [ Ignore ]   [ # 12 ]
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Who do you think gave the Raptors those useless limbs? He works in mysterious ways!

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Posted: 25 February 2013 09:42 AM   [ Ignore ]   [ # 13 ]
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The raptors had useful ones.  You’re thinking of the Tyrannosaurids.  Especially tarbosaurus.  He couldn’t even clap.  The loser.

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[ Edited: 26 February 2013 09:23 AM by Dead Monky ]
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Posted: 25 February 2013 11:05 AM   [ Ignore ]   [ # 14 ]
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My bad. I should have written “T Rex. Where’s my Jurassic Park video when I need a reference?


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Posted: 26 February 2013 09:32 AM   [ Ignore ]   [ # 15 ]
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Funny thing, you’re not really that wrong (depending on who you ask).  There are growing questions about whether or not the dromaeosauridae (raptors) used their arms for holding on while they used their bitching claws for disemboweling their prey as was once thought.  There’s a theory that at least the smaller varieties used them to climb trees and whatnot.  But my personal favorite is the theory out now that they may have eaten like many modern birds of prey: chase down their prey, jump on it and pin it down with the sickle claws while they eat it alive.  The arms (which would have been covered in feathers) would have been used in conjunction with the tail to maintain their balance.  In a lot of ways, it’s even more horrible than jumping on and disemboweling their food.

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