Evolution fact observation....
08 Feb '12 21:55http://blogs.discovermagazine.com/loom/2011/08/03/what-home-looked-like-for-seven-million-years/
You guys can discuss this as I know where it will go and probably will not comment but I was just doing a little research on this so called "FACT" of evolution. I've pointed this out many times but just had to post this example of the facts which in reality, there aren't any.
I've highligted the few words I always find so conviencing that it is truly fact now and not a "theory" anymore.
(Chances) are we split from other apes in the forest, Lieberman told me. He notes that chimpanzees, bonobos, and gorillas all live in the forest today. The fact that we don’t find early forest hominins is probably due to the fact that closed forests are lousy places for fossils to form. It’s probably no coincidence that scientists have found practically hardly any fossils of chimps or gorillas. They’ve lived in the wrong place.
Another crucial fact to consider is that the earliest known hominins have a number of features that (hint) that they were no longer knuckle walkers. A number of researchers (argue) that while they couldn’t walk as fast as we can and (probably) couldn’t run at all, they were already bipedal. So even though the earliest hominin fossils come from lightly wooded East African grasslands, Lieberman (suspects) that the origin of bipedalism took place earlier, and it took place in forests elsewhere on the continent. Another paleoanthropologist, John Fleagle, expressed a similar sentiment to me.
Lieberman (suggests) that the earliest hominins adapted to the margins of those early forests, where they had to travel further from tree to tree to find fruit. He and his colleagues have found that it’s four times more efficient for a human to walk a given distance than it is for an ape to knucklewalk. Saving energy on these trips could have translated into more babies.
By about seven million years ago, studies like Cerling’s now (suggests), hominins were already moving around on two legs through open woodlands. Hominins evolved to be more efficient walkers. They also acquired big teeth and jaws. Lieberman (argues) that hominins need this new mouth equipment so that they didn’t have to rely on fruit alone. They could also chew on harder, tougher plants like tubers, which served as fall-back foods in the open woodlands.
Although tree cover increased for a couple million years, forests never came to dominate the East African landscape in the past seven million years. And when open grasslands returned with a vengeance, hominins underwent a dramatic change. They got tall and acquired traits that Lieberman argues were adaptations for running. Their teeth and jaws got small; their snouts disappeared.
Lieberman (argues) that this change marks a new way in which hominins coped with the increasing grasslands: they became hunter-gatherers, traveling long distances to stalk game. And once they began to enjoy this high-protein diet, one more change occurred: the energy-hungry hominin brain was able to expand towards its current size.
But he is quick to point out that there are some important facts about hominin evolution (that don’t fit) neatly into the scenario he sketched out for me, and a lot of other crucial facts that (remain) to be discovered. (Anybody who isn’t confused doesn’t know what’s going on),” he said. At least scientists now have a better backdrop for finding out exactly what did happen on the way to Homo sapiens.
Hummm, with the words I've highlighted, it sounds like a fact and a sure thing to me!!!!!
You guys can discuss this as I know where it will go and probably will not comment but I was just doing a little research on this so called "FACT" of evolution. I've pointed this out many times but just had to post this example of the facts which in reality, there aren't any.
I've highligted the few words I always find so conviencing that it is truly fact now and not a "theory" anymore.
(Chances) are we split from other apes in the forest, Lieberman told me. He notes that chimpanzees, bonobos, and gorillas all live in the forest today. The fact that we don’t find early forest hominins is probably due to the fact that closed forests are lousy places for fossils to form. It’s probably no coincidence that scientists have found practically hardly any fossils of chimps or gorillas. They’ve lived in the wrong place.
Another crucial fact to consider is that the earliest known hominins have a number of features that (hint) that they were no longer knuckle walkers. A number of researchers (argue) that while they couldn’t walk as fast as we can and (probably) couldn’t run at all, they were already bipedal. So even though the earliest hominin fossils come from lightly wooded East African grasslands, Lieberman (suspects) that the origin of bipedalism took place earlier, and it took place in forests elsewhere on the continent. Another paleoanthropologist, John Fleagle, expressed a similar sentiment to me.
Lieberman (suggests) that the earliest hominins adapted to the margins of those early forests, where they had to travel further from tree to tree to find fruit. He and his colleagues have found that it’s four times more efficient for a human to walk a given distance than it is for an ape to knucklewalk. Saving energy on these trips could have translated into more babies.
By about seven million years ago, studies like Cerling’s now (suggests), hominins were already moving around on two legs through open woodlands. Hominins evolved to be more efficient walkers. They also acquired big teeth and jaws. Lieberman (argues) that hominins need this new mouth equipment so that they didn’t have to rely on fruit alone. They could also chew on harder, tougher plants like tubers, which served as fall-back foods in the open woodlands.
Although tree cover increased for a couple million years, forests never came to dominate the East African landscape in the past seven million years. And when open grasslands returned with a vengeance, hominins underwent a dramatic change. They got tall and acquired traits that Lieberman argues were adaptations for running. Their teeth and jaws got small; their snouts disappeared.
Lieberman (argues) that this change marks a new way in which hominins coped with the increasing grasslands: they became hunter-gatherers, traveling long distances to stalk game. And once they began to enjoy this high-protein diet, one more change occurred: the energy-hungry hominin brain was able to expand towards its current size.
But he is quick to point out that there are some important facts about hominin evolution (that don’t fit) neatly into the scenario he sketched out for me, and a lot of other crucial facts that (remain) to be discovered. (Anybody who isn’t confused doesn’t know what’s going on),” he said. At least scientists now have a better backdrop for finding out exactly what did happen on the way to Homo sapiens.
Hummm, with the words I've highlighted, it sounds like a fact and a sure thing to me!!!!!
Back to Top