Human Brain Has Origin in Lowly Worm?

WhatsHisNuts

Woke
Forum Member
Aug 29, 2006
28,264
1,489
113
50
Earth
www.ffrf.org
Uh oh. Lookout ID & ceationists, science is on the move.

Human Brain Has Origin in Lowly Worm
By Robert Roy Britt
LiveScience Managing Editor
posted: 21 April 2007
11:05 am ET


The origin of the human brain has been traced back to primitive central nervous systems in worms and bugs, researchers now say.

Humans and other vertebrates evolved from an ancient common ancestor that also gave rise to insects and worms, scientists have long known. But they're of course quite different today.

Vertebrates have a spinal cord running along their backs, but insects and annelid worms such as earthworms, which have simple organs that barely resemble a brain, have clusters of nerves organized in a chain along their bellies. So biologists have long assumed these systems?key to ultimately putting a brain to use?arose independently, only after the split.

In the new study, researchers at the European Molecular Biology Laboratory [EMBL] in Heidelberg examined they embryos of a marine annelid worm called Platynereis dumerilii, which has a nervous system unchanged for eons. They documented the molecular fingerprints of the developing nerve cells.

"Our findings were overwhelming," says study team member Alexandru Denes. "The molecular anatomy of the developing CNS [central nervous system ] turned out to be virtually the same in vertebrates and Platynereis. Corresponding regions give rise to neuron types with similar molecular fingerprints and these neurons also go on to form the same neural structures in annelid worm and vertebrates."

"Such a complex arrangement could not have been invented twice throughout evolution , it must be the same system," said G?sp?r J?kely, another team member. "It looks like Platynereis and vertebrates have inherited the organization of their CNS from their remote common ancestors."

The results, published this month in the journal Cell, leave a nagging question: How did the central nervous systems get flipped from belly to backside or vice-versa?

"How the inversion occurred and how other invertebrates have modified the ancestral CNS throughout evolution are the next exciting questions for evolutionary biologists," said study leader Detlev Arendt.
 

Terryray

Say Parlay
Forum Member
Dec 6, 2001
9,704
1,887
113
Kansas City area for who knows how long....
insects and annelid worms such as earthworms, which have simple organs that barely resemble a brain, have clusters of nerves organized in a chain along their bellies.

Ha! Ha! Reminds me of a buddy prof. of mine who used to demonstrate this simple nervous system to students by cutting the head off a cockroach and feeding/watering living headless trunk via the gullet with a syringe for months!


34544672_105095bfe1_m.jpg
 

IntenseOperator

DeweyOxburger
Forum Member
Sep 16, 2003
17,897
63
0
Chicago
I love the religious banter. It's like Cubs/WSox fans. Fodder for endless back and forth whatever.

Am I missing something?

Who are the forums creationists (I threw the R in) that this post is intended for?
 

buddy

Registered User
Forum Member
Nov 21, 2000
10,897
85
0
Pittsburgh, Pa.
Nope

Adam + Eve, Garden Of Eden, Noah's Ark, Jonah and the Whale, Parting Of The Red Sea, David + Goliath, Samson + Delilah, Joseph and the coat of many colors.

It all makes perfect sense to me because....

if the bible says it, I believe it.
 

IntenseOperator

DeweyOxburger
Forum Member
Sep 16, 2003
17,897
63
0
Chicago
Thanks for the response Buddy.

One good thing about science....

when they change what is science today, it becomes what is science for tomorrow, until they change it again tomorrow.
 

Terryray

Say Parlay
Forum Member
Dec 6, 2001
9,704
1,887
113
Kansas City area for who knows how long....
I don't have a problem with evolution. I studied it quite intensely in my youth, when I found such subjects absorbing.

Even helped do some research-- my (now) Prof. freind I mentioned above--I assisted him on some fieldwork (near Franklin Mountains, TX) with Rock Rattlesnakes, Crotalus lepidus klauberi and Crotalus lepidus lepidus. The two subspecies are difficult to distinguish, and occur in sympatry where you get, even more confusing, phenotypic klauberi that are genotypic lepidus. My friend employed starch gel electrophoresis to assay the allozymes in hopes of clearing this up. It didn't, but he did get a paper out of it which "Herpetologica" published (the leading peer review publications for snake folks). Some of the local non-venonmous snakes evolved color patterns to mimic the venomous ones about, which he also wrote on.


lepidus-377.jpg




I could be overstepping my ground here,

yeah, gmroz22, sure enough--but not surprising given your restatements of my points I try to make elsewhere...


The main point I tried to get across in that other thread on fact/faith concerned how thinkers last few centuries have understood, on a meta-philosophical level investigating theories of knowledge, the shaky basis of reason, and how reason and science itself is based on assumptions that can't be demostrated as true by reason.


I wanted to point this out so all are aware of it, I certianly didn't expect you to refute it---indeed, to accomplish that would make you, perhaps, the finest philosopher of last 100 years or so.


None of this concerns any arguments for Christianity, or god or the supernatural. I don't care about making any of those arguments.


The Leo Strauss excerpt I used to express how irrational it is to use scientific arguments against folks who don't accept it's premises to begins with.


for what it's worth, both Hume and Strauss were (I believe) atheists. They just had the courage to train their powerful tool of reason on itself---and the results aren't pretty.

again, None of this concerns any arguments for Christianity, or god or the supernatural.

let me bold that:

None of this concerns any arguments for Christianity, or god or the supernatural.


Though I will point out (not that I endorse or support this view) that many evolutionary scientists not only believe in God, but think evolution is an important part of it.

In fact, the co-discoverer of the theory of evolution by natural selection, Alfred Russel Wallace, used the theory as a cornerstone of his faith. After he published ?The Scientific Aspect of the Supernatural" in 1866, Darwin wrote to him ?I hope you have not murdered too completely your own and my child.?

A contemporary example would be Francis Collins, director of the Human Genome Project. This man has forgotten more about evolution, biology and genes than either of us will ever know. He's written books on his faith, exploring and thinking about these issues as much as Dawkins or Harris. Now, let's see you stand in a room with a scientist like this and explain to him his childish logic, the obvious "holes" he's missed in his thinking and how he's been brainwashed.
 
Last edited:

blgstocks

Registered User
Forum Member
Nov 4, 2005
3,181
12
0
So. Cal
I believe in evolution Gmrozz, there is indisputable evidence that supports microevolution. Terry ray presented some in his post above where a snake will evolve stripes of a more deadly snake to fool predators. But saying that I believe in evolution is not saying I think we started out from dust floating in space. Although I do have some freinds who believe there is a God and he started the mass of energy or whatever and then evolution took over from there. If you consider the possibility of the supernatural, it is alot more likely than the gabajillion to 1 odds that scientists have quoted on some parts of evolution to occur. And to make up for it we just stretch the time frame out, oh that couldnt likely happen in 500 million years, then we must have been evolving on this earth for 50 billion years. I know this is a childish arguement with little facts against your theory of evolution from a single cell of something. No doubt terry ray could provide much more and I have heard creationist scientists talka nd in debates and they know their stuff. But I am giving you my view on evolution, not trying to convinvce you otherwise, and like i said in the classic "10 questions" - that I dont know as much as I should about evolution and how it could fit with christianity or how it does not fit, or who is against it and what arguements do they have. But yes I do believe in evolution, but it is to an extent, and since I consider the possibility of a supernatural, i finid that to be much more likely.
 
Bet on MyBookie
Top