No Established connection between humans and primates

There is a common belief that because humans and primates share a high percentage of genetic similarity, we therefore descended from a primate ancestor. The problem is that this conclusion is asserted, not demonstrated, and the evidence does not actually support a smooth, continuous line between primates and humans. The phrase “98 percent similarity” has been repeated so often that people treat it as a proof rather than what it truly is, which is a misleading statistic based on select comparisons. Genetic similarity alone does not imply ancestry. A pig’s heart matches human tissue closely enough for transplantation, yet no one argues that pigs are proto-humans. Genetic similarity simply shows that life shares a design framework, not that one species gradually transformed into another.

When scientists speak about a “common ancestor,” what they mean is that there should have been a species that branched into two lines. One line supposedly leads to modern primates and one to humans. However, the pivotal species required for this theory has never been identified. There is no fossil, no full genome, no verified transitional organism that sits at the branching point. What exists are models, reconstructions, and hypothetical trees. There is no empirical chain connecting modern humans to any primate ancestor through a series of gradual increments in cognition, language, symbolic reasoning, or consciousness.

This absence becomes even more pronounced when we consider the nature of consciousness itself. Evolutionary branching typically produces gradients. There are intermediate strengths, transitional forms, partial improvements. This is true across insect evolution, plant evolution, fish evolution, and nearly every biological system. But in humans, consciousness appears as a qualitative leap. Symbols, self-awareness, abstract reasoning, moral responsibility, complex language, artistic conception, spiritual intuition, the capacity to choose against instinct—these do not emerge as shades of grey in the fossil or cognitive record. They appear fully developed in one lineage only, without partial prototypes in any other species. There is no ladder from primate cognition to human consciousness. There is a gulf.

Genetics only deepens that gulf. Between humans and primates are significant differences in gene expression, neural architecture, speech pathways, regulatory sequences, and uniquely human accelerated regions in the genome. These differences are not incremental. They are categorical. If humans truly descended gradually from primates, we would expect a spectrum of intermediate species with increasing cognitive complexity, partial speech modules, incomplete symbol systems, and half-developed neural circuits. Instead, there is a sudden appearance of modern cognitive capacity.

Even within the hominid fossil record, what we observe are distinct categories: hominids that operate almost entirely by instinct, with limited symbolic behavior, and then the sudden emergence of Homo sapiens with full cognition. The missing intermediates are not minor gaps. They are fundamental discontinuities. In this light, the biblical account of Adam receiving the breath of life captures the very phenomenon that evolutionary theory struggles to explain. Primates and hominids may have existed in many varieties, but the soul and consciousness of humanity arrive abruptly, not as an evolutionary slope but as a distinct moment in the human story.

There is also the historical layer that the text of Genesis presupposes. Cain fears being killed by others who already exist beyond his family circle. This implies populations outside the line of Adam, populations that may not have shared the spiritual nature that Adam and Eve received. It also aligns with the possibility that many hominid varieties existed before the flood and were swept away, leaving only the lineage connected to moral agency and divine image.

Taken as a whole, the scientific record, the cognitive discontinuity, the genetic architecture, and the narrative structure of Genesis converge on the same conclusion. Humanity is not a by-product of primate evolution but a unique creation placed within a world where many biological forms existed before and around us. Our consciousness, our moral nature, our capacity for abstract thought, and our sense of the divine do not come from primates but from an entirely different source. The jump is too large, the intermediates are missing, and the evidence supports distinction rather than descent.

This is not anti-science. It is simply refusing to treat assumptions as conclusions. Information does not equal understanding, and similarity does not equal ancestry. What separates humans from primates is not two percent of genes but an entirely different order of mind, meaning, and destiny.

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My LCMS pastor (a moderate in a very fundamentalist denomination) told me that the explanation for why humans and great apes share so much genetic material is probably that when God formed man from the dust of the earth, the dust had some gorilla dung in it.

Why not?

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That Coming from a secular minded deconstructed Christian, sure, I’ll play… why not?

Do you reject paternity testing ?.

The main information I find in your post is your awareness of the range and variation of fossil hominids that have been found, especially with regard to their differences in cranial capacity.

It might help if you could explain how a level of self-awareness, language complexity and abstract reasoning ability can be determined from skeletal remains.

WHile i would agree that common ancestry in evolutionary terms is an assertion rather than proven, using Genesis to disprove it is fallacious.

Yes the 2% is a statistical deception, and, yes the fossils found have never produced a viable transition, but, if the evolutionary split was further back there would be no transition between ape and human, only developmental humans.
This appears to one way that evolutionary thought has changed. The need for transitions only occurs if you are trying to , say, change a dinosaur into a bird , if apes and humans developed in parallel there would be no need to have a transition to connect them.
The transitions that are still required are the basic ones that move from aquatic to semi-aquatic, to land based, and the changes in basic metabolism between ectotherm and self regulation. If some dinosaurs are claimed to be endothermic, that would present a problem that has yet to be solved, unless it is going to be claimed that there were two lines of dinosaur not one.
Whether it is admitted or not, there are limits to what a “small” change can achieve. Changing from one fully developed system to another would be beyond that scope, logically. *because you woul have to break down one before the other could start affecting it, which would need planned devolution) Unless someone is going to seriously claim a modular development whereby all you need is the right Genetic code and “house” you have a fully developed system.

Let the assertions and derision begin (again)

Richard

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However common that belief is, it is not the reason trained biologists think humans and other primates share a common ancestor. It is the pattern of both similarities and differences that point to shared ancestry. One good example is @glipsnort ‘s article on the mutations that separate humans and other primates.

The same type of data with the inclusion of observed human mutations is found here:

We could also look in the 2005 chimp genome paper for more examples of the types of evidence that have convinced the scientific community:

https://www.nature.com/articles/nature04072

“Sites containing CpG dinucleotides in either species show a substantially elevated divergence rate of 15.2% per base; they account for 25.2% of all substitutions while constituting only 2.1% of all aligned bases.”
[Me: We observe that CpG substitutions are by far the most common type of mutation that occurs in human populations. If humans and chimps share a common ancestor then we would expect to see these mutations dominate the differences between the genomes, and they do.]

“To assess the rate of evolution for each gene, we estimated KA, the number of coding base substitutions that result in amino acid change as a fraction of all such possible sites (the non-synonymous substitution rate). Because the background mutation rate varies across the genome, it is crucial to normalize KA for comparisons between genes. A striking illustration of this variation is the fact that the mean KA is 37% higher in the rapidly diverging distal 10 Mb of chromosomes than in the more proximal regions. Classically, the background rate is estimated by KS, the synonymous substitution rate (coding base substitutions that, because of codon redundancy, do not result in amino acid change). Because a typical gene has only a few synonymous changes between humans and chimpanzees, and not infrequently is zero, we exploited the genome sequence to estimate the local intergenic/intronic substitution rate, KI, where appropriate. KA and KS were also estimated for each lineage separately using mouse and rat as outgroups (Fig. 9).

. . .

The KA/KS ratio for the human–chimpanzee lineage (ωhominid) is 0.23. The value is much lower than some recent estimates based on limited sequence data (ranging as high as 0.63 (ref. 7)), but is consistent with an estimate (0.22) from random expressed-sequence-tag (EST) sequencing45. Similarly, KA/KI was also estimated as 0.23.”

[Me: If humans and chimps share a common ancestor we would expect the same rate of substitution in non-synonymous positions as we see in introns. That’s exactly what we see.]

I could find other examples, if you wish.

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Common ancestry is a scientific theory that makes a long list of predictions in multiple fields, and those predictions have panned out. This is why the theory is accepted in the scientific community (which also includes about 30% Christians).

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Yeah,

You see what you expect. Big deal.

Richard

The other arguments in the opening post take up less space, so I will tackle the rest here.

That’s false. We are a recent branch on the primate tree. The primate tree had split many times before humans appeared.

The empirical link between humans and other primates is the distribution of characteristics in both living and fossil species (the nested hierarchy) and both the pattern of similarities and differences at the genetic level.

They do? I have seen just the opposite with increasing complexity of stone tools throughout hominid evolution. If you are claiming a gulf you are going to have to present the evidence.

Please cite those genetic differences and demonstrate how known evolutionary mechanisms are not capable of producing them. As of now, you have an empty accusation.

Stone tools in earlier species of Homo prove this wrong.

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You did solid work pulling those citations, genuinely. But none of what you quoted actually establishes the thing you think it does. You’re describing patterns of similarity and mutation rates, not a demonstrated lineage. This is the core distinction most people miss.

Shared mutation categories do not prove common ancestry.
They simply show that two species experience similar types of mutational pressure under similar biochemical rules. CpG hotspots mutate in all mammals. That’s a feature of DNA chemistry, not genealogy.

Saying “CpG substitutions appear frequently in both humans and chimps” does not tell you why they appear. It only tells you that both genomes operate under the same biochemical constraints.

You cannot leap from:
A and B mutate the same way
to
therefore A and B came from each other.

That is interpretation, not demonstration.

Same with KA/KS ratios. Coding vs. non-coding substitution balances tell us how stable proteins are under selective pressure, they do not establish the historical pathway by which two separate lineages emerged. They show constraint, not connection.

Here’s the real issue:

You can show similarity.
You can show mutation rates.
You can show statistical congruence.
But you still lack the one thing required for common ancestry to be proven:

a continuous chain of developmental intermediates that bridge cognition, language, symbolic reasoning, self-awareness, and moral consciousness.

That chain does not exist; not genetically, not behaviorally, not neurologically, not culturally.

We don’t see:

• transitional cognition
• transitional symbolic reasoning
• transitional language layers
• transitional moral architecture
• transitional consciousness markers

We see a sudden appearance of fully modern humans with symbolic cognition, abstract thought, moral reasoning, burial practices, language capacity, art, and self-awareness, with no incremental cognitive bridge from any primate.

Genetic similarity ≠ ancestry.
Genetic similarity = shared biological constraints.

This is why pigs, mice, and humans share massive gene overlap.
This is why almost every mammal shares conserved genomic motifs.
This is why octopuses share genes with us that have nothing to do with lineage.

If similarity alone established ancestry, then nearly all life would be direct cousins, which collapses genealogy into chemistry, not history.

So yes, humans and chimps share biochemical architecture.
But the core break remains:

no demonstrated evolutionary pathway from instinct to consciousness.
No transitional cognition.
No transitional symbolic reasoning.
No transitional identity.

Until that link is established, you are interpreting patterns through a philosophical lens, not proving descent.

If you personally feel more comfortable aligning yourself with primates, that’s your choice.
But I’m still waiting for the actual bridge, not the statistical shadows around it.

When you can show the continuum, not the correlation, we’ll have something to discuss.

If you are going to claim that something is a deception, you should be prepared to explain how and why it is deceptive.

I would be extremely surprised if you knew anything at all about the various different ways in which genomes can be compared, and what results have been obtained from comparing human genomes to the genomes of chimpanzees, gorillas and other humans.

But feel free to demonstrate that you actually do know what you’re talking about by explaining how the above-quoted “2%” statistic is derived, and why it is deceptive.

Given your recently exposed unfamiliarity with Microrapter, I would be extremely surprised if you even knew what fossil hominids have been discovered, let alone enough about them to determine whether or not they are transitional between humans and other primates.

But again, feel free to demonstrate that you do have some knowledge in this area.

Alternatively, you could bluff and bluster and demonstrate yet once more that you what you say on this topic is worthless blather.

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I am demonstrating common ancestry through empirical evidence.

For this to be true they would have needed to start out with the same genome.

How do you explain why synonymous mutations occur at the same rate as mutations in introns? The only reason I would expect to see this is if you start with the same genome and then let it diverge through known natural processes of mutation. Why would we expect to see this in separately created species?

We already have that with the observed tool use in hominids.

No scientist is claiming that similarity alone is evidence of shared ancestry.

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Roy, the issue here has nothing to do with Richard’s familiarity with Micro-raptor or your personal expectations about what he “should” know. The question is whether the claims themselves hold up. You keep deflecting to people’s supposed ignorance instead of addressing the problem directly.

So let’s deal with the two points head-on.

1. The “2% difference” statistic is deceptive
Not because scientists are lying, but because the metric itself is selective.
The 2% figure only applies when comparing aligned, single-nucleotide positions and only after excluding:

• indels (insertions/deletions)
• structural variations
• copy number variations
• regulatory sequence differences
• epigenetic patterns
• chromosomal rearrangements
• and all non-alignable sequence

If you include those, the similarity drops massively.
Even the authors of the 2005 chimp genome paper acknowledged this.

So yes, the 2% line is “deceptive” in the sense that it gives the public the impression of near-identity, when the total genomic divergence is far broader.

This is a scientific critique, not ignorance.

2. Fossils show variation, not demonstrated transitions
There are hominid fossils, of course. No one denies that.
But demonstrating relatedness is not the same thing as demonstrating lineage.

A transitional fossil must satisfy two criteria:

• it must show incremental, functional intermediates,
• and it must map clearly onto a continuous developmental chain.

We do not have that for human cognition, symbolic reasoning, language capacity, or the emergence of self-awareness.

We have a scatter of hominid species with distinct traits, but no unbroken line demonstrating how instinct became consciousness, how pre-symbolic brains became symbolic thinkers, or how non-speaking hominids developed the neural architecture for language.

Variation is not the same as transition.

Fossils can show morphology; they can’t show cognition, grammar, abstraction, morality, or consciousness.

And that is the real break… the one you keep avoiding.

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Exactly how can any of those be determined based on the evidence available?

I understand that there is evidence of gradual increases in tool complexity, weapon complexity, metal-smelting ability, pottery-making ability, architecture, cave-painting, and other aspects of human development across the various species considered ancestral to modern humans.

At what point do you think this sudden emergence of modern humans occurred, such that none of the above existed beforehand?

Citation needed.

Again, how would such transitions be determinable from fossil and archaeological evidence?

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At the end of the day, the chimp and bonobo share more DNA with humans than they do with any other ape or primate.

The theory of evolution predicts that there were species in the past that had a mixture of features from modern humans and ape-like ancestors. Discovering those fossils is evidence in support of the theory.

If fossil evidence doesn’t matter to you, then I am also confused as to why you keep bringing it up.

How does a single fossil do that? Also, there is no reason we would have multiple fossil examples of the entire lineage given both the rarity of fossilization and the fact that we have searched such a tiny percentage of the Earth for fossils. The fact that we keep finding new fossil species all of the time should reinforce this.

Why would we expect to have one?

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It’s also worth mentioning endogenous retroviruses (ERVs). These viruses insert randomly (or randomly enough) into the host genome. There are about 200,000 ERVs in the human genome, and of those less than 100 are not found at the same position in the chimp genome. That means more than 99% of the hundreds of thousands of randomly inserted viral sequences in the human genome are found at the exact same spot in the chimp genome. Yet another example of what we should observe if we share a common ancestor with other primates.

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If you think the theory shouldn’t make those predictions, then explain why.

If you think those predictions aren’t observed, then tell us what they are and why you think they haven’t been observed. For example, do you think scientists are lying when they predict CpG mutations should be the most abundant substitution mutation when comparing the human and chimp genomes? Do you think the scientists are lying about the number of CpG mutations? Wouldn’t you observe the very same thing in this data set, or if you sequenced these genomes?

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Roy, you’re proving my point for me without realizing it.

You keep asking, “How can transitional cognition or consciousness be determined from fossils?”
The answer is: it can’t.

That’s precisely the limitation I’m highlighting.

Fossils preserve bones, not minds.

Archaeology preserves objects, not conscious experience.
Genomes preserve sequence, not self-awareness.

So when you argue for a cognitive or moral transition between non-human primates and modern humans, you are necessarily depending on inference, not direct evidence.

You can show increasing tool complexity over time, yes.
But tool complexity does not demonstrate:

• symbolic thought
• self-awareness
• moral reasoning
• language grammar
• theory of mind
• abstract concept formation
• spiritual intuition
• reflective identity

Those capacities appear fully and suddenly in Homo sapiens, with no incremental neurological stages documented anywhere in the record.

You asked:

“At what point did modern humans suddenly appear?”

We can answer that:
At the point where the archaeological record shows burial rites, symbolic art, ritual behavior, long-term planning, abstract notation, and cultural transmission, all emerging rapidly and disproportionately within anatomically modern humans.

Those capacities do not have a clear precursor in earlier hominin species.
Variation exists, yes. Transition, no.

And regarding your “citation needed” for genetic similarity across species:

Shared genes across taxa are a known phenomenon.
This is not controversial.

PAX6 (eye development), Hox clusters (body plan), serotonin receptors, and dozens of other genes appear across wildly different lineages, including octopus, human, mouse, and fly.
Shared genes cannot tell you lineage by themselves, they tell you shared biology, not a genealogical map.

So to summarize:

• We can’t detect transitional consciousness from fossils
• We can’t detect transitional symbolic reasoning from bone fragments
• We can’t reconstruct language capacity from lithic technology
• We can’t infer moral architecture from pottery
• And we can’t derive self-awareness from a genome sequence

Given those limitations, the burden is not on me to supply fossils that cannot exist.
The burden is on the evolutionary claim to demonstrate a cognitive bridge where the physical data cannot show one.

You may be comfortable filling in that gap with assumption.
I’m simply not.

If you want to discuss evidence, I’m here.
But if you’re going to insist on a cognitive transition, you’ll need to show how such a transition could even be detectablewith the tools available.

Until then, your position is no less interpretive than mine, just dressed in scientific rhetoric.

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Well, if we got DNA from the dung containing their food, it might explain why we’re partlly bananas.

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