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Author Topic:   "If I descended from an ape, how come apes are still here?"
Tangle
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Posts: 9504
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Joined: 10-07-2011
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Message 58 of 286 (637486)
10-16-2011 3:33 AM
Reply to: Message 57 by NoNukes
10-15-2011 2:25 PM


Re: Dogs and Cats
I came to the same conclusion yesterday, the analogy doesn't work - to be at all useful I would have to put it as "if cats descended from dogs, how come there are still dogs" - which is wrong on many levels.
No, I'll have to go back to trying to explain that we and apes are both modern and do the cousins thing again. Frustrating.

This message is a reply to:
 Message 57 by NoNukes, posted 10-15-2011 2:25 PM NoNukes has replied

Replies to this message:
 Message 59 by Coragyps, posted 10-16-2011 8:15 AM Tangle has not replied
 Message 62 by NoNukes, posted 10-16-2011 12:50 PM Tangle has replied

  
Tangle
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Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 60 of 286 (637513)
10-16-2011 9:05 AM


Found this rather nice diagram, whilst pootling around. The numbers show the number of individuals as fossils that we've found.
(Dawkins is saying that chimps descended from Australopithecus africanus btw)
http://www.handprint.com/LS/ANC/evol.html

  
Tangle
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Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 61 of 286 (637538)
10-16-2011 12:16 PM


How's this?
If we descended from apes, how come apes are still here?
Imagine that you are standing face to face with a chimpanzee - let’s call him Pan. The chimp (Pan troglodytes) is an ape and one of our (Homo sapiens) closest animal relatives.
Now imagine that with your left hand you are holding the hand of your mother and that your mother is holding the right hand of her mother and so on for thousands of generations back into the past.
Imagine that Pan is doing the same but with her right hand.
You now have imaginary parallel lines of women and female chimps holding hands backwards into time - like a railway track with women and chimps lining each side.
You can now walk down the centre of the rails and look carefully at your mother's family line and the chimp's family line going back millions of years.
So what would do you see?
Walking back about 200,000 years you see the first different species that gave rise to us - Homo heidelbergensis. But you wouldn’t be able to tell exactly when H. sapiens merged into H. heidelbergensis because each mother would look almost identical to the next — you can’t see the join. The changes from mother to mother are so gradual that you only see a change by comparing mothers thousands or millions of years apart.
This is why there’s no such thing as a transitional fossil or a missing link; every fossil is a transitional fossil and every living species is in transition to the next — if we had a fossil for every mother in the lines, even the experts wouldn’t be able to say when a separate species had been formed. We can only guess with hindsight.
As you walk back further, at about 500,000 years ago, you’d see a branch form and go off sideways Homo neanderthalensis — the Neanderthals. They lived along side us but developed separately. There may even be Neanderthal mothers in our line, because we think that for some time there was interbreeding.
And so on down the line of mothers through increasingly apelike creatures until we reach an animal called Australopithecus africanis (the Southern African ape) at about 2.5 million years ago.
At this point something amazing happens - you see that the right hand of a mother from the chimp line is holding the left hand of a mother from the human line. The lines have met.
This mother starts the lines to both Pan and you. Pan is your distant cousin.
And both you, the human, and Pan, the ape, are still here.

Replies to this message:
 Message 63 by Nuggin, posted 10-16-2011 1:31 PM Tangle has replied

  
Tangle
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Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 64 of 286 (637566)
10-16-2011 4:53 PM
Reply to: Message 62 by NoNukes
10-16-2011 12:50 PM


Re: Dogs and Cats
You could not possibly have reached your own position on the matter by considering human evolution in detail.
I have never reached a 'position' on evolution - or at least I didn't know I had.
For me, as for most I suspect, there was no difference between the theory of evolution, the periodic table, Ohm's Law and Calculus. It was just a subject studied as fact like all others. I no more have a position on evolution than I do on the knee reflex. I find the whole religion vs Darwin thing bizarre.
The people I'm talking to are not the kind that have 'positions' - they just haven't really thought about it much, if at all; but they've heard the silly arguments.
This place is extreme, not everyone worries about this stuff.

This message is a reply to:
 Message 62 by NoNukes, posted 10-16-2011 12:50 PM NoNukes has replied

Replies to this message:
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Tangle
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Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 65 of 286 (637569)
10-16-2011 5:58 PM
Reply to: Message 63 by Nuggin
10-16-2011 1:31 PM


You can't use terms like "troglodytes" or "parallel" etc. You're just going to confuse and scare them.
Deep in there, you have a point - I'll tone down the science names.
BUT it's dumb to assume that people who don't know anything about evolution are dumb. I know nothing about Homer but I assume that's because I never had to study him, not because I'm stupid.
It may be the case that hyper-religious people are dumb (ie possibly 40% of all Americans) but in some other parts of the world it ain't like that.

This message is a reply to:
 Message 63 by Nuggin, posted 10-16-2011 1:31 PM Nuggin has replied

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Tangle
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Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 71 of 286 (637609)
10-17-2011 5:30 AM
Reply to: Message 69 by Dr Adequate
10-17-2011 5:19 AM


Re: the ape to human chart
We aren't all confused. Creationists are confused. There's nothing we can do about that, because they're trying to be confused.
Hard core creationists know this argument because we've told the story a hundred times - they just won't hear it.
I'm not doing this for them, it's for those people who simply haven't thought about it but have heard and accepted the line 'if we come from apes......etc'. They then go about their daily lives and never think about it again until they meet someone like me on a bad day.
I too think that image has a lot to answer for. It's persisted for 150 years.

This message is a reply to:
 Message 69 by Dr Adequate, posted 10-17-2011 5:19 AM Dr Adequate has not replied

  
Tangle
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Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 77 of 286 (637617)
10-17-2011 6:06 AM
Reply to: Message 70 by Chuck77
10-17-2011 5:25 AM


Re: the ape to human chart
How did you work your way thru all the lies (or maybe a better word-mistakes) and eventually come to accept it?
I guess you missed post 60
(I do worry about people who still quote Piltdown Man as a problem for evolution. Why anyone would think a Victorian fraud was relevant today I can't imagine. It's like saying that because scientists proved cold fusion to be wrong, physics is therefore wrong. Weird.)

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Tangle
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Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


(2)
Message 83 of 286 (637689)
10-17-2011 1:25 PM


Any better?
If we descended from apes, how come apes are still here?
What’s wrong with this picture?
Well nothing or pretty much everything — depending on what you think it shows.
If you see it as man evolving from million year old ape-like ancestors, you’re right. But if you see it as a picture of how monkeys change into people, that’s probably why some people ask the question:
If we descended from apes, how come apes are still here?
To ask that question means that there’s a vital piece of information missing from the questioner’s understanding of what evolution is. That vital piece of information is the concept of the tree of life, that all things are related to each other.
An evolution scientist on hearing that question will sigh deeply or change the subject quickly because religious fundamentalists regularly use it as a really bad argument for creationism.
A more tolerant scientist may ask you a question back. Such as:
"If Iceland was colonized by Scandinavians, why are there still Scandinavians?" Or
"if I'm descended from my grandfather, how can I have cousins?"
That’s something to think about because it does provided the answer. Meanwhile here’s fuller explanation.
Imagine that you are standing face to face with a chimpanzee - let’s call him Pan. The chimp’s scientific name is Pan troglodytes, she’s an ape and one of our closest animal relatives.
Now imagine that with your left hand you are holding the hand of your mother and that your mother is holding the right hand of her mother and so on for thousands of generations back into the past. By doing this, you know as an absolute certainty that you are descended directly on your mother’s side to everyone in the chain.
Imagine that Pan is doing the same but with her right hand.
You now have two imaginary lines of women and female chimps holding hands going backwards in time - like a railway track with women and chimps lining each side.
You can now walk down the centre of the rails and look carefully at your mother's family line and the chimp's family line going back millions of years.
So what would do you see?
Walking back about 200,000 years you see a mother who’s husband was a chap science named Heidelberg Man (Homo heidelbergensis ) This is the first different species that we’ve come across in our chain. But you wouldn’t be able to tell exactly when H. sapiens merged into Heidelberg because each mother would look almost identical to the next — you can’t see the join. The changes from mother to mother are so gradual that you only see a change by comparing mothers thousands or millions of years apart. We only now know that Heidelberg is different from us because we’ve found his fossilised remains and we can compare it to ourselves today.
This is why there’s no such thing as a transitional fossil or a missing link; every fossil is a transitional fossil and every living species is in transition to the next — if we had a fossil for every mother in the lines, even the experts wouldn’t be able to say where a separate species had been formed. We can only guess with hindsight.
If you find this hard to grasp or you think it’s impossible for one species to change slowly into another we can see it happening today. For example, we call species that change slowly over geographic areas rather than time, ring species.
Here in the UK the Herring Gull and the Lesser Black-backed Gull are distinct and non-interbreeding species. But if you physically follow the Herring Gull west towards Siberia it gradually blurs into something more like a Lesser Black-backed Gull. It carries on changing towards North America and when it finally returns to Europe the Herring Gull has become a Lesser Black-backed Gull and the two species don’t interbreed. At no point in the ring can you say exactly where it changed species — it’s a gradual merging of characteristics over distance.
As you walk back further, at about 500,000 years ago, you’d see a branch form and go off sideways from our line, these are the Neanderthals (Homo neanderthalensis). They lived along side us but developed separately. There may even be Neanderthal mothers in our line, because we think that for some time there was interbreeding.
And so on down the line of mothers through increasingly apelike creatures until at about 2.5 million years ago we reach an animal called the Southern African ape (Australopithecus africanis).
At this point something amazing happens - you see that the right hand of a mother from the chimp line is holding the left hand of a mother from the human line. The lines have met.
This mother starts the lines to both Pan and you, so Pan is your distant cousin.
And both you, the human, and Pan, the ape, are still here.

Replies to this message:
 Message 84 by Dr Adequate, posted 10-17-2011 1:39 PM Tangle has replied
 Message 89 by caffeine, posted 10-18-2011 4:21 AM Tangle has replied

  
Tangle
Member
Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 85 of 286 (637694)
10-17-2011 2:09 PM
Reply to: Message 84 by Dr Adequate
10-17-2011 1:39 PM


I think I've misinterpreted what Dawkins was saying here:
According to molecular evolution principles (Human evolutionary genetics, Jobling, Hurles and Tyler-Smith, 2004), the most recent common ancestor of humans and chimpanzees had as much pre-human traits as chimp-like traits. In other words, progressing along the chimpanzee line means losing some human-like traits and gaining chimpanzee traits, whereas progressing along the human line means losing some chimp-like traits and gaining human traits. A fossil close to the last common ancestor is thus difficult to place in a precise chimp or human lineage because it has not accumulated enough differences since the two have diverged. For instance, the most recent paranthropus fossils are 1.2 million years old, fairly recent compared to the time since the divergence of humans and gorillas (7-9 mya), therefore many of the paranthropus traits are very much like gorillas (see Homininae). In contrast, it is more difficult to place a 3 or 4 million years old australopithecines fossil in the chimp or human lineages. A.africanus seem to be close to the human lineage, whereas A.afarensis are closer to the chimp lineage, with the exception of Selam (3.3Mya) who has been placed in A.afarensis, but has more human traits than Lucy (3.2Mya) for instance, and would better be placed in A. africanus The mainstream view among paleontologists can be found in this page and in the main "human evolution" page, but similar conclusions were reached by at least two other biologists, independently: the author of the Paranthropus aethiopicus page of the Online Biology Dictionary Paranthropus aethiopicus - Online Biology Dictionary and Richard Dawkins in his book The ancestor’s tale 2004 Boston: Houghton Mifflin Eds, "According to this theory, chimps and bonobos are descended from Australopithecus Gracile type species while gorillas are descended from Australopithecus Robustus, or parnthropus type species. These apes were once bipedal but then lost this ability when they were forced back into the semi-forest, presumably by those Australopithecines who eventually became us"; In short, ancestors of chimpanzees are Australopithecus afarensis and ancestors of gorillas are Paranthropus..
Australopithecus - Wikipedia
Can you fix it for me?

This message is a reply to:
 Message 84 by Dr Adequate, posted 10-17-2011 1:39 PM Dr Adequate has replied

Replies to this message:
 Message 86 by Dr Adequate, posted 10-17-2011 3:04 PM Tangle has replied

  
Tangle
Member
Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 87 of 286 (637736)
10-17-2011 5:26 PM
Reply to: Message 86 by Dr Adequate
10-17-2011 3:04 PM


Looks to me atm that the split was at least 4m years earlier - perhaps Toumai is the nearest I can get.
Fossil Hominids: Toumai

This message is a reply to:
 Message 86 by Dr Adequate, posted 10-17-2011 3:04 PM Dr Adequate has replied

Replies to this message:
 Message 88 by Dr Adequate, posted 10-17-2011 7:19 PM Tangle has not replied

  
Tangle
Member
Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


(1)
Message 90 of 286 (637816)
10-18-2011 5:58 AM
Reply to: Message 89 by caffeine
10-18-2011 4:21 AM


Re: Ring Species
I think your ring species example has a bit of a problem.
It seems nothing is straightforward.
I didn't make up the Gull story, it's originally from Mark Ridley 1985, p5 and reproduced in Daniel Dennet's Dangerous Ideas book.
I guess they didn't have DNA to play with in 1985
Thanks for keeping me honest.

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 Message 89 by caffeine, posted 10-18-2011 4:21 AM caffeine has not replied

  
Tangle
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Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 91 of 286 (637844)
10-18-2011 9:31 AM


haha, whilst researching the Toumai fossil, I clicked on an Answers in Genesis link for a bit of light relief and found this
1. The definition of the term hominid is still disputed. There seems to be a consensus among evolutionists that there are at least two defining qualifications: (a) bipedal locomotion and (b) reduced canines.
However, this is an improper definition. It is loaded with evolutionary presuppositions that prejudice a fossil toward possible human ancestry without proving it. The biblical distinction that true humans are made in the image of God is disregarded. In other words, in diagnosing fossils, the dice are loaded improperly in favor of evolution.
How could scientists have missed the 'proper' definition of a hominid for so long?

Replies to this message:
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Tangle
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Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


(2)
Message 95 of 286 (638814)
10-26-2011 9:36 AM


Ok, here's the final story (I haven't changed the ring species part)
If we descended from apes, how come apes are still here?
What’s wrong with this picture?
Well nothing or pretty much everything — depending on what you think it shows.
If you see it as man evolving from million year old ape-like ancestors, you’re right. But if you see it as a picture of how monkeys change into people, that’s probably why some people ask the question:
If we descended from apes, how come apes are still here?
To ask that question means that there’s a vital piece of information missing from the questioner’s understanding of what evolution is. That vital piece of information is the concept of the tree of life, that all things are related to each other.
An evolution scientist on hearing that question will sigh deeply or change the subject quickly because religious fundamentalists regularly use it as a really bad argument against evolution.
A more tolerant scientist may ask you a question back. Such as:
"If Iceland was colonized by Scandinavians, why are there still Scandinavians?" Or
"if I'm descended from my grandfather, how can I have cousins?"
That’s something to think about because it does provided the answer. Meanwhile here’s fuller explanation.
Chimpanzees are apes and one of our closest animal relatives - their scientific name is Pan troglodytes. Now, imagine that you are standing face to face with a chimpanzee - let’s call her Pan.
Now imagine that with your left hand you are holding the hand of your mother and that your mother is holding the right hand of her mother and so on for thousands of generations back into the past. By doing this, you know as an absolute certainty that you are descended directly on your mother’s side to everyone in the chain.
Imagine that Pan is doing the same but with her right hand.
You now have two imaginary lines of women and female chimps holding hands going backwards in time - like a railway track with women and chimps lining each side.
You can now walk down the centre of the rails and look carefully at your mother's family line and the chimp's family line going back millions of years.
So what would do you see?
Walking back about 200,000 years on the human side you see a mother who’s husband was a chap science named Heidelberg Man (Homo heidelbergensis ) she’s distinctly human, using tools and standing upright, probably hairless and very tall — the males are up to 7 feet tall. This is the first different species that we’ve come across in our chain. But you wouldn’t be able to tell exactly when H. sapiens merged into Heidelberg because each mother would look almost identical to the next — you can’t see the join. The changes from mother to mother are so gradual that you only see a change by comparing mothers thousands or millions of years apart. We only now know that Heidelberg is different from us because we’ve found his fossilised remains and we can compare it to ourselves today.
This is why there’s no such thing as a transitional fossil or a missing link; every fossil is a transitional fossil and every living species is in transition to the next — if we had a fossil for every mother in the lines, even the experts wouldn’t be able to say where a separate species had been formed. We can only guess with hindsight.
If you find this hard to grasp or you think it’s impossible for one species to change slowly into another we can see it happening today. For example, we call species that change slowly over geographic areas rather than time, ring species.
Here in the UK the Herring Gull and the Lesser Black-backed Gull are distinct and non-interbreeding species. But if you physically follow the Herring Gull west towards North America it gradually blurs into something more like a Lesser Black-backed Gull. It carries on changing towards Siberia and when it finally returns to Western Europe the Herring Gull has become a Lesser Black-backed Gull and the two species don’t interbreed. At no point in the ring can you say exactly where it changed species — it’s a gradual merging of characteristics over distance.
As you walk back further, at about 500,000 years ago, you’d see a branch form and go off sideways from our human line, these are the Neanderthals (Homo neanderthalensis). They lived along side us but developed separately. There may even be Neanderthal mothers in our line, because we think that for some time there was interbreeding.
And so on down the line of mothers through increasingly apelike creatures until at about 2.5 million years ago we reach an animal called the Southern African ape (Australopithecus africanis). This creature is small — around 4 feet, with a brain a third the size of ours and although she stands upright like us, she’s covered in hair and is distinctly apelike. Some people think that this is roughly where chimps split from the human line but modern molecular genetics tells us that it was earlier.
We have to walk much farther down the lines to get to where most evolution scientists think chimps branch off - somewhere about 7m years ago. This mother would have looked something like a chap called ‘Taumai’ (Sahelanthropus tchadensis). He has the same brain size as a modern chimp but his face is a little more like a human than a chimp.
No one knows for sure whether Taumai is the point where chimps start off on their own line but we do know one thing for certain:
Wherever the split actually happened, at this point in the two lines of human and chimp descendants you would see that the right hand of a mother from the chimp line is now holding the left hand of a mother from the human line.
The lines have met — the ancient chimp and the ancient human have the same mother.
This mother starts the lines to both Pan and you, so Pan is your distant cousin. And both you, the human, and Pan, the ape are still here.
Edited by Tangle, : No reason given.

Replies to this message:
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 Message 104 by glowby, posted 11-02-2011 11:25 PM Tangle has not replied

  
Tangle
Member
Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 98 of 286 (638934)
10-27-2011 4:22 AM
Reply to: Message 97 by dwise1
10-27-2011 3:14 AM


Re: So Exactly What Mistake are They Making?
Makes sense, I'll a add a sentence or two on that......
Edited by Tangle, : No reason given.

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 Message 97 by dwise1, posted 10-27-2011 3:14 AM dwise1 has not replied

  
Tangle
Member
Posts: 9504
From: UK
Joined: 10-07-2011
Member Rating: 4.7


Message 121 of 286 (651536)
02-08-2012 3:24 AM
Reply to: Message 112 by Perdition
02-07-2012 4:02 PM


Perdition writes:
How about this: "If we descended from apes, why are there still apes?"
"Well, if dogs descended from wolves, why are there still wolves?"
That's a good one, I'll use it. Thanks.

Life, don't talk to me about life - Marvin the Paranoid Android

This message is a reply to:
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Replies to this message:
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