Male humans have one less pair of ribs than female humans.
Correct answer- False
Although the Bible states that Eve was created from Adam's rib, males have exactly as many ribs as females.
8. Ribs can grow back. Basic biology.
The question specifically asks if males have fewer ribs than females. They don’t. No dispute.
But as for Marcsana’s claim- ribs regrowing after removal may be basic biology…if you are a salamander. Mammals, including humans, do not regrow removed ribs.
Mechanics of bone regeneration
Bone has the capability to regenerate, forming new osseous tissue at locations that are damaged or missing. Although this capability extends to regeneration of whole limbs in some animals, in humans regeneration is on a more limited scale and occurs during defect healing, e.g., after the removal of bone screws; fracture healing; distraction osteogenesis (during limb lengthening), and integration of orthopaedic implants with the host bone.Edited to add:
I did some more research on this subject. Answers in Genesis claims that entire ribs, when removed, will regrow. However (as is, unfortunately, typical for the site) they had no checkable references or sources. So I did some research on my own.
Ribs do have some capacity for regeneration, consistent with the quote above. Free Bone Grafts states that the maximum donor size for rib grafts is 14 cm. (about 5.5 inches)- not the length of a whole rib. When entire ribs are removed, grafts or scaffolds are used to stimulate bone regrowth, such as a gel matrix
bone graft, or, esperimentally, beta-tricalcium phosphate cylinders. Without the scaffolding, rib regrowth may not occur at all. Nor is the bone that regenerates identical to the original- as an article in Plastic and Reconstructive Surgery stated, "Regeneration after a proper costectomy [rib removal] is possible, but the regenerate is thin, flat, and lacking cancellous bone." So, in summary, as expected, some rib regrowth is possible, but easy regrowth of entire ribs is not.