Thankyou CTD, LinearAq, and Bex,
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It would be consistent to think that it simply pleased the Creator to outfit humans and other creatures with certain visually appealing characteristics.

"But God giveth it a body as it hath pleased Him" (1 Corinthians 15:38).

In addition to this, and by His grace, God provided humans with the ability to recognize and appreciate beauty. Only with this ability can people give God proper credit fron inventing human beards, lion manes, peacock feathers, salmander spots, crustacean coloration,and the ultraviolet color patterns in deep sea fish (where there is no ultraviolet light). All these creatures could conceivably serve their purposes and be ugly, but instead they seem to have been uniquely adorned by a Master Artist.

A Creator God who appreciates beauty and wants others to appreciate His handiwork must be responsible for the origin of aesthetic features. Men have beards--some thick, some sparse--because it pleased God to adorn them so.

Since beards are routinely shaved, it seems there is no pragmataic biological function for them. Yet according to Darwinian evolution, nature selects individuals with novel, advantageous features. If, for vertebrates in general, "the developmental origin of hair is...mysterious" for evolution, then the specification of adrogenic hair on male humans is even more so.

On the other hand, if everything was created by a God who exists outside the physical world, there is a ready answer, one with broad application: beards present a certain appearance. Aesthetic features were emplaced by Someone who knew how things look in addition to how things work. Beards do not confer any selectable survival advantage to humankind, but they do serve to add distinction to men, perhaps as different features distinguish women.

Yes, Linear, deep in the brain, the hypothalamus produces surges of gonadotropin-releasing hormone, a small chemical that acts like a key to turn on the manufacture and export follicle-stinulation hormone and leutenizing hormone (LH) from the pituitary gland. A scientist might explain that men have beards because in males LH stimulataes testicular Leydig cells and other tissues to produce yet another hormone, testosterone. Hair follicles in cerain areas of the body build "androgenic hair," which includes beards.
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Once again, "But God giveth it a body as it hath pleased him"(1 Corinthians 15:38).

"All flesh is not the same flesh: but there is one kind of flesh of men, another flesh of beasts, another of fishes, and another of birds." (vs.39)

ICR
Brian Thomas, M.S.

We must give all glory for His designing of mankind, to Him, and Him alone. We did not evolve from any ape-like mammal. Jehovah God made all mammals unique.
We (humans), were 'created in His own image, in the image of God , male and female created he them.' Genesis 1:27

Yes, Bex, hormonal imbalances do/can cause excess hair to grow on ones' (females) body. Thank you for sharing.

Have a blessed Resurrection Sunday in the Lord Jesus, Abishag <><