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Author Topic:   The egg came first
Modulous
Member
Posts: 7801
From: Manchester, UK
Joined: 05-01-2005


Message 35 of 111 (243092)
09-13-2005 7:18 PM
Reply to: Message 34 by igor_the_hero
09-13-2005 7:08 PM


hmmmmmm
Unnerved means the parents are not sure what they have and the may kill it.
If organisms are inclined to kill their own young if it's genome has an unusual mutation in it, then that organism would be selected from the gene pool. Thus, we see organims that don't do this, and instead see a general trend of strong maternal/paternal protective instinct instead...since that benefits said organisms genes.
How would you feel knowing you gave birth to something new?
Are you suggesting a red jungle fowl would kill its young when it realizes it is a domestic chicken? How would the jungle fowl know this? Do jungle fowls have a classification system?
...Your instincts would tell you to destroy it.
I hope your instincts don't tell you to do that...my instincts would be to protect my child from the world.
Also there are many predators that eat eggs. This parent may give birth to very hard-shelled young so that it can leave the nest. Instinct will tell it that it can leave the nest. Then predators may inspect and consume at their own will.
An interesting point. Maybe you have this backwards? The parent doesn't give birth to a hard-shelled so that it can do anything. It gives birth to a hard-shelled egg which protects it against the environment. This may mean it can leave the nest. It seems that the threat from predators is not greater than the benefits of protection garnered from hard eggs.
This chicken egg is going to hatch as a new species in a world that has never before seen it. Do you expect it to be able to live?
You are thinking of individuals. We are talking about populations here, and the speciation is a gradual process that takes place in a population.
Does "survival of the fittest" suddenly have no relevance?
It has a lot of relevance. That is why hard shelled eggs survived. That is why the domestic chicken survived.

This message is a reply to:
 Message 34 by igor_the_hero, posted 09-13-2005 7:08 PM igor_the_hero has replied

Replies to this message:
 Message 36 by igor_the_hero, posted 09-13-2005 7:39 PM Modulous has replied

  
Modulous
Member
Posts: 7801
From: Manchester, UK
Joined: 05-01-2005


Message 37 of 111 (243137)
09-13-2005 9:37 PM
Reply to: Message 36 by igor_the_hero
09-13-2005 7:39 PM


Evolution 101
Your red jungle fowl has instincts that tell it what its young should look like.
Are you suggesting a bird that looks like this would think 'hey my young shouldn't look like this?
Do you have any evidence for this, or is it just on opinion formed as a bare assertion?
About predators, I am a little confused. I was saying that if this creature gives birth to very hard-shelled young so that it can leave the nest whenever it chooses. The chicken egg may be noticeably softer and thus a much larger chance to be eaten
I understand your position. Your position is that the chicken egg may have a much larger chance of being eaten by predators. That's fine, I may ask for some sources on this later, but not now. My position is a lot more complex.
The chicken's parents had hard eggs too. Indeed, its parents did, and so on and so on past its crocodillian/dinosaur ancestors and to its amphibious ancestors. Somewhere back here there was a soft egged laying creature that gave birth to a slightly harder egg. The genes for making slightly harder eggs survived for a few generations until a small number in population had them, let's say 5% for ease. Now this small number of the population has slightly harder egg casings. They don't leave the 'nest', they behave in the same manner as before.
For some reason, this hard egg mutation conveys a survival advantage. Not difficult to see how, it is better protected from the environment and perhaps some predators.
Let's also say that 25% of the soft layer's eggs do not survive past egg stage and that the advantage that the hard layer's eggs give such an advantage that only 23% of the eggs do not survive. This means that every generation the relative number of hard layers grows compared with the soft layers.
This process repeats many many times, and eventually we have a population that doesn't lay harder than normal eggs, but actual hard eggs.
If, your scenario were to occur (let us say that harder eggs was actually a disadvantage), then the harder egg section of the population would struggle to survive. It may survive despite of its disadvantage, but the chances are it won't.
Now, if you have some information that could numerically show how the hard eggs are a significant enough a disadvantage as to merit their inevitable extinction (according to evolution), show me.
In evolution you must think in individuals.
Who gave you that idea? Let me quote some sources:
Dr Michael Lynch writes:
Evolution is a population-level process, and the underlying philosophy of our research is that “nothing in evolution makes sense except in the light of population genetics.” Link
Evolution happens writes:
[Evolution] is the change in the gene pools of living populations of species which occurs over time. A gene is a hereditary unit that can be passed on unaltered for many generations. A gene pool is the set of all genes in a species or population. Link
Douglas J Futuyma writes:
Biological evolution ... is change in the properties of populations of organisms that transcend the lifetime of a single individual. The ontogeny of an individual is not considered evolution; individual organisms do not evolve. Link
pbs writes:
Biological evolution refers to the cumulative changes that occur in a population over time. Link
I hope that clears up that misconception for you.
If you think in mass evolution you would most likely have an extinction.
Amusingly, that's what we generally see. Check out the fossil record...
You must consider the fact that this is the only one of its species.
Ahhh, this is your problem. You are thinking in terms of X is a species that gives birth to Y that is a different species. It doesn't really work like that. One population gradually diverges from another, and over many many generations gradually loses its ability to reproduce with the other. There is some interesting stuff on ring species you might want to check out....basically species A can mate with species B. Species B an mate with species C. And species C can mate with species D. However, B and D can't reproduce with one another.
So yeah, this child is not the only one of its kind reproductively, though it may have a novel genetic mutation that its parent does (in fact it probably does, we all do).
Please continue to try to prove me wrong.
I am not here to prove you wrong. I see you have some misconceptions about evolution. I am here to help you understand what the theory actually says. You want to ask questions? I'll try and answer them. You don't want to accept the theory? That's fine...I just hope you will know exactly what it is you are rejecting - it ain't the mickey mouse idea that seems to have been presented to you.
Enjoy your stay here, and I believe that Caboose can go all the way!

This message is a reply to:
 Message 36 by igor_the_hero, posted 09-13-2005 7:39 PM igor_the_hero has replied

Replies to this message:
 Message 38 by igor_the_hero, posted 09-13-2005 10:01 PM Modulous has replied

  
Modulous
Member
Posts: 7801
From: Manchester, UK
Joined: 05-01-2005


Message 40 of 111 (243157)
09-13-2005 10:28 PM
Reply to: Message 38 by igor_the_hero
09-13-2005 10:01 PM


Re: Evolution 101
I am sorry that this seems rude, I merely am doing a report on evolution and my teacher advised me to argue in a couple of forums.
If I think you are being rude, I'll let you know. Debate is a great way to learn new things. Your teacher had a great idea.
About how the young should look like, the fowl should be able to compare its young with others. It is not a bare assertion.
Indeed, they can compare its young with others. It wouldn't look that different. I showed you two websites, one with a jungle fowl, one with a domestic chicken. Now, you will need to show a study that demonstrates parental rejection of slightly different looking offspring for your point to hold. Do you have any actual evidence that this occurs?
As individuals, I must argue with you there.
That's fine. Remember that I showed you what the evolutionists actually say about evolution. Some of them are evolutionary scientists, they say their theory is about populations. If you think their theory does not say that, show it. You may have a skewed impression of evolution...I assume they don't.
Evolution must start with individuals.
An individual may have a mutation which it then passes on to its offspring, through time this mutation is present in some percentage of
the population. It may be that this mutation provides a benefit, a survival or reproductive advantage to those in the population that have it. If this is so, then the number with this mutation will tend to increase until it is 'fixed' in the population. This is evolution. If you think evolution works differently, then one of us is wrong. I've given my evidence for this position (what the scientists that study the field say). You may give yours if you have it.
These chickens had to start somewhere.
Yes, domestic chickens came from jungle fowls...or that is the most commonly held opinion on the matter.
But what of the creatures that only bear one young? Did a bunch of animals all suddenly have the same young that was different from their parents?
As above - the one mutation is gradually disseminated throughout the population.
As for the fossil record, it can not be relied upon.
It can be relied upon in the context I was referring to. It can be relied on to show that a hell of a lot of extinction happens.
It Texas there is a river clearly showing humans walking with dinosaurs. When the rock was excavated they found more footprints from the same time period.
This is off topic. I believe it has been discussed here before, but here is a general rebuttal of the finds. Feel free to open a new thread to discuss it.
I am sorry to bring it into this, but in the Bible in the book of Job, he clearly describes a Brachiosaurus and Plesiosaurus
Again, off topic here, but this has been addressed elsewhere. This discussion is still open so why not add your thoughts their?
As of this reproduction, to advance farther it needs to have more of its own kind to reproduce to the next stage.
Unless its species is extinct it has lots of its own kind to reproduce. It is not reproductively isolated from its community. If the mutation caused it to be reproductively isolated, it would basically be sterile and would not pass its mutation on.
Creatures A have young showing 50% of their charachteristics. Creature B, the young, has nothing to mate with of its own kind so has young with A
Creature A1 has a child, creature B1. Creature A2 has a child, creature B2. Creature B1 has a mutation that may confer an advantage to the population. Creature B1 has babies with Creature B2. Now creatures C1, C2, C3 and C4 have babies with C5, C6, C7 and C8 (B3 and 4s babies). Now we have creatures D1-12. If this mutation is passed on to all this babies, we can see the mutation spreading through the population. Where this benefit may convey an advantage over others in the population that do not have it. In relative numbers, more with the mutation survive than those that don't so the relative amount with the mutation increases compared with those that don't, until there are more with than without...perhaps until all of them do.
As for the hard-shelled eggs, thank you for showing me that idea.
No probs. Anything I can do to help!

This message is a reply to:
 Message 38 by igor_the_hero, posted 09-13-2005 10:01 PM igor_the_hero has not replied

  
Modulous
Member
Posts: 7801
From: Manchester, UK
Joined: 05-01-2005


Message 44 of 111 (243170)
09-13-2005 11:03 PM
Reply to: Message 43 by igor_the_hero
09-13-2005 10:54 PM


rudeness
RAZD was a little sharp with you there. I'd get used to it, plenty of people will be like this with you here. You can either rise to them and involve yourself in an argument, or much respond curtly with something like 'If you don't want to discuss this with me, then don't'
You raise a good point, if someone is chastised for asking questions being mistaken about something, then what's the use?
Some are here to learn, some to teach, others are here to debate, to argue, to 'win', or to convert. Some are here for a combination of these. With that in mind, may I warn against this kind of thing:
You speak of learning the difference between faith and science, but are you aware that evolution is as much a religion as creationism? Creationism actually has a better concept of scientific laws than evolution.
It will open a can of worms that will be hard to close...trust me, stand back from this for the moment - or you'll be jumped on by a dozen posters eager to prove you wrong, often in a less than pleasant way.

This message is a reply to:
 Message 43 by igor_the_hero, posted 09-13-2005 10:54 PM igor_the_hero has replied

Replies to this message:
 Message 45 by igor_the_hero, posted 09-13-2005 11:08 PM Modulous has not replied

  
Modulous
Member
Posts: 7801
From: Manchester, UK
Joined: 05-01-2005


Message 69 of 111 (244085)
09-16-2005 8:08 AM
Reply to: Message 68 by Brad McFall
09-16-2005 7:58 AM


Tyranny
He said it in 'The Ancestor's Tale'
Read more here

This message is a reply to:
 Message 68 by Brad McFall, posted 09-16-2005 7:58 AM Brad McFall has replied

Replies to this message:
 Message 70 by Brad McFall, posted 09-16-2005 8:42 AM Modulous has replied

  
Modulous
Member
Posts: 7801
From: Manchester, UK
Joined: 05-01-2005


Message 71 of 111 (244115)
09-16-2005 10:22 AM
Reply to: Message 70 by Brad McFall
09-16-2005 8:42 AM


Parasomnium?
What has Parasomnium written so prolifically about with regards to the mind and its discontinuity?

This message is a reply to:
 Message 70 by Brad McFall, posted 09-16-2005 8:42 AM Brad McFall has replied

Replies to this message:
 Message 72 by Brad McFall, posted 09-16-2005 12:03 PM Modulous has not replied

  
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