Evolution is often portrayed as a master of efficiency; a blind sculptor chiselling complexity from simplicity. But then comes sexual reproduction: a system so convoluted, in many ways so costly and counter-intuitive that it defies the very foundations of the principles of natural selection and the “survival of the fittest.”

Sexual reproduction requires two individuals, elaborate signalling, synchronised timing, and the fusion of gametes (ova and sperm) — all for the privilege of producing offspring with only half of the genes. The male provides his genetic pattern without the prospect of bearing offspring. It's like splitting your lottery winnings with a stranger who may or may not show up! 

Asexual reproduction, by contrast, is simple, direct, and genetically selfish. 

So why would nature abandon it in favour of a system that demands cooperation, vulnerability, and extensive biochemical choreography? Even more profound, though, is the means by which the complex and various attributes of males and females happen to arrive in the first place, in order for synchronised “selection” to take place! Did multiple arrangements arrive fortuitously throughout the enormous “evolutionary timescales” to enable numerous attempts at sexual reproduction? 

Even if this is offered as a possibility, it has all the hallmarks of planning and foresight. 

The stock evolutionary answer to the question of the arrival of reproduction by sex is “genetic diversity”: sex shuffles the deck, so populations adapt more flexibly. But not only does this violate the stated “goalless mechanism” of evolution, it also presumes the deck was already built; that the shuffling mechanism was already in place, and the benefits were selectable. It's like claiming that the printing press invented itself because people needed books.

The real puzzle is origin: how did the machinery of meiosis, gamete differentiation, and sexual signalling arise before they could be useful? Evolutionists describe this in terms such as “deep evolutionary strategy” without offering any valid evidence or even a reasonable explanation. And strategy requires intelligence, knowledge, foresight, planning... Evolution clearly does not possess these! 

Sexual reproduction presents an extraordinary web of interdependencies. Every component relies on each of the others already being in place: no sperm without eggs, no eggs without meiosis, no meiosis without recombination machinery, no recombination without proteins, no proteins without enzymes, in fact no life at all without proteins (see the article 'The Symphony Before the Composition'). The system is not a linear thread but a tightly entangled network of mutually dependent processes. 

This raises profound questions for evolutionary theory: If sexual reproduction requires two distinct and complementary reproductive systems, did these systems evolve along perfectly synchronised parallel tracks over vast timescales? How were the anatomical, physiological, and neurological changes in each sex kept precisely aligned at every stage, for countless generations, so that successful reproduction remained possible? 

[Technical note:] The improbability of two independently evolving genomic lines arriving at mutual compatibility by chance alone is beyond any practical possibility: the probability that two 3‑billion‑base sequences would match codon­-­for­-codon is in the order of … a one divided by a ten followed by almost 2 billion zeros. In other words, randomness cannot even begin to gesture toward such an outcome.

And note in particular that these “parallel tracks” refer to multiple branches of Darwin's “Tree of Life” — therefore the same models of precisely aligned features discussed above were required, not merely to have evolved in piecemeal synchronicity for one life-form, but somehow to be perpetually available in their completion for multiple occurrences of natural selection to act upon!

Such a scenario would require continuous parallel micro‑level compati­bility; not just in broad structures such as gonads or gametes, but in the fine‑grained complexity of the molecular choreographies of meiosis, signalling pathways, receptor–ligand interactions (signals that trigger precise biological responses), gene regulation. 

This consistent compatibility would need to be repeated for every sexually reproducing species, which means more than 90% of all life on earth. 

The challenge for evolutionists, then, is explaining how gradual, independent mutations could accumulate in two distinct sexes in multiple domains of living creatures, while consistently maintaining the precise micro-synchrony required for the system to continue functioning successfully throughout the alleged eons of evolutionary time! 

And all of this from a process that does not see, feel, aim, or plan!

Some theorists invoke symbiosis (a mutually beneficial relationship between two different species), or viral co-option (where design features are somehow “borrowed”) or unspecified ancient cell fusions to cover the quantum leap from asexual to sexual reproduction. But these are speculative scaffolds, not empirical bridges.

The truth is, evolutionists don't know how sexual reproduction began; and their theories, for all their explanatory bravado, quietly sidestep the question!
 

(If you wish to see the technical view of how the evolutionists' crutch of "co-option" is replete with serious flaws, see the article "Borrowed Systems: Broken Logic!")