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Your Thoughts on Creation & Evolution

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inquiring mind

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Your question brings up a question that has always puzzled me in regard to evolution from origin. I don't know how cells or organisms grow or function, but how does any living life form survive its particular infancy stage, one of some duration period anyway, without a matured parent?
 
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Bugeyedcreepy

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bacteria do it all the time - actually pretty much any single-celled life form does it. Quite a few multi-celled organisms do this without quip too - trees, plants, turtles...

they seem to do just fine so perhaps some studying of these life forms would help?
 
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inquiring mind

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I get that, not in a knowledgeable scientific way of course, but how would any infant stage life form that remotely resembles a human survive?
 
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Bugeyedcreepy

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I get that, not in a knowledgeable scientific way of course, but how would any infant stage life form that remotely resembles a human survive?
Not sure what you're asking - a turtle is an example of a quite advanced tetrapod that is self-sufficient from the outset - are you asking how we did it? If so, then we didn't. Our lineage of parenting extends well back before we diverged to become humans.
 
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inquiring mind

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Not sure what you're asking - a turtle is an example of a quite advanced tetrapod that is self-sufficient from the outset - are you asking how we did it? If so, then we didn't. Our lineage of parenting extends well back before we became humans.
At some point on the evolution time-scale eventual humans had to make an initial step to human-like form, two arms and legs etc. How did the first one survive without being given adult care?
 
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Bugeyedcreepy

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At some point on the evolution time-scale eventual humans had to make an initial step to human-like form, two arms and legs etc. How did the first one survive without being given adult care?
Well, its parents would've looked after it. we as first humans would've been a very gradual and imperceptible shift from what we were before it, just as every other form of life was cared for (or came about fully independent and self-caring) from its parents
 
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Just from a common sense perspective there would have to be a "first" caring parent, one that could help an infant survive. Here we are supposedly millions of years later and an infant can't survive on its own. That seems more like regression than evolution. I just can't see the first transitional phases to human-like form, which requires an infancy period, in a world that would have eliminated it pretty quickly.
 
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pitabread

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Just from a common sense perspective there would have to be a "first" caring parent, one that could help an infant survive.

There are various levels of "infant care" found in the natural world ranging from none-at-all to the human version where we typically care for youth right up into adult hood. All it would really take for this to evolve is selective pressure favoring infant care in certain populations.

I just can't see the first transitional phases to human-like form, which requires an infancy period, in a world that would have eliminated it pretty quickly.

Caring for infants isn't unique to humans and likely would have evolved long before humans appeared.
 
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Bugeyedcreepy

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Well, it depends on the conditions that led to caring parents. Certain environments (particularly ones favouring herds or groups) will be more conducive to parental care,thereby selecting the organisms that are better able to care and protect their relatively few young over those that don't. This is again dependent on the environment, such as groups of upright walking apes on the plains of sub-saharan africa tend to suit parental care than say a green leatherback turtle having to hang around a particular beach to care for its many, many offspring.

Ever hear the term "breeding like rabbits"? this is another evolutionary parental strategy - rabbits are something of a cross-over between advantages of resource intensive parental care like us and the hands-off approach of mass-hatching turtles in a game of numbers - rabbits will care for their young until the resident fox raids their burrow - then they simply abandon their young in self preservation to have many, many more rabbits in just another month or two in the very next burrow over.

Evolution has produced many, many parenting strategies, all with their respective advantages and disadvantages.
 
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I'm not talking about an established species. Think "first" transitional human-like being(s) requiring an infancy period. How many of these would have to occur for even one to survive a lengthy period before maturity on its own?
 
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Bugeyedcreepy

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I'm not talking about an established species. Think "first" transitional human-like being(s) requiring an infancy period. How many of these would have to occur for even one to survive a lengthy period before maturity on its own?
perhaps you keep missing it - the parental care was in place well before the first human. In fact, if you really want to get the gist, here's some results of babies with the clutch reflex to hang onto their hairy parents that we're all still born with, despite humans no longer being so hairy these days...
hanging newborn baby from bars - Google Search
 
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Shemjaza

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I'm not talking about an established species. Think "first" transitional human-like being(s) requiring an infancy period. How many of these would have to occur for even one to survive a lengthy period before maturity on its own?
There's also never going to be a real jump in requirements from mother to child.

If you look at chimps or orangutans looking after their newborns, it's not markedly different to a human mother.
 
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pitabread

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I'm not talking about an established species.

I would still suggesting looking to nature though for examples of gradations of relative infant care because it can help in conceptual understanding in how this evolved.

Here's one such example involving Discus fish: Biparental mucus feeding: a unique example of parental care in an Amazonian cichlid. - PubMed - NCBI

Think "first" transitional human-like being(s) requiring an infancy period. How many of these would have to occur for even one to survive a lengthy period before maturity on its own?

Again, this behavior is not unique to humans. It found throughout the animal kingdom in various degrees and therefore would have been evolving long before even proto-humans existed.

There's an overview here: Reproductive Allocation in Animals - Ecology - Oxford Bibliographies
 
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I don't think you guys are recognizing my question. I know chimps are good parents, but how did the "first" chimp(s) or chimp-like creature make it to adulthood? Maybe you're suggesting they crawled a while and walked a while through the transition phase, but that still doesn't explain (to me anyway) how the first one(s) could survive some form of infancy.
 
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Speedwell

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What kind of parenting behaviors did the chimps' ancestor species engage in? And the ancestor species of those ancestors? And so on...
 
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Bugeyedcreepy

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Again, their Parents looked after them! Cared parenting extends all the way back to our fishy ancestors - before land animals were even a thing. Remember though, all forms of parenting (or lack thereof) can be found at pretty much any ecosystem you can imagine. this is just how evolution does things. What form of animal do you know of that doesn't look after their infants to some degree?
 
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pitabread

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I don't think you guys are recognizing my question.

I believe I am understanding the question, but I'm trying to create a convey a different conceptualization around what constitutes "parent care". From your posts it appears you may be conceptualizing it as an 'all or nothing' scenario. Whereby animals are not caring for their young at all and then suddenly one generation later looking after their offspring with a high degree of care. When in fact the evolution of parental care is a much longer and more graduated evolutionary history likely going back hundreds of millions of years (even before mammals existed).

As a hypothetical example to conceptualize how this could evolve, imagine you have an organism that reproduces by laying thousands of offspring at a time and doesn't care for them at all. Its survivability is via sheer numbers of offspring given that most of them are unlikely to survive.

Now in that same scenario, imagine that some of the parents begin exhibiting protective behavior of the initial offspring. This doesn't have to be anything dramatic. It could just be a case where a parent simply hangs around the new offspring for a brief period detering early predation and therefore increasing the survivability of those offspring. If natural selection favors that behavior, then there will naturally be a shift in the overall population towards organisms favoring parental care. Gradually this shift would result in a more interdependent relationship between parents and offspring.

Now there are also trade-offs to consider with this new parenting scenario. For example, a single parent or pair of parents trying to guard thousands of offspring may not be feasible. So there might be a simultaneous favoring of the production of fewer offspring. As infant mortality drops, the number of offspring required for successful reproduction also drops.

Over millions of years of compounded evolution, the result is a variety of reproductive strategies. Some involve producing thousands of offspring with no parental care and ensuring survivability via sheer numbers. Others involve producing very few offspring but with high degrees of parental care and therefore ensuring survivability that way.
 
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Good explanations of your perspectives... appreciate the comments. I just can't wrap my head or heart around that line of thought... I guess that's why the argument continues. I don't think trying to consolidate the two beliefs into a question of "History" works either. I suspect it will always remain about faith vs. "interpretations" of scientific evidence, and who or what do you believe.
 
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Bugeyedcreepy

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Well, evidence is just evidence and there's simply no argument about it, let alone a continuing one. Populations evolve, not individuals - so when you talk about the first human, or first chimp, there was never such a thing. Instead, a population of animals speciated and evolved over a long period of time to become a population of chimps or human.
 
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