It's not faith - just circumstances. No apology is needed. I don't have a religious phobia.
Every species came into existence as a result of genetic mistakes. We are all mistakes of nature. It explains our flawed biology and the fact that 99.9% of all the species to evolve so far on Earth are already extinct.
Here are several examples of design flaws in various organisms:
Recurrent Laryngeal Nerve in Mammals:
Description: This nerve, which controls the muscles of the larynx (voice box), takes a lengthy and circuitous route from the brain down into the chest, looping around the aorta (or subclavian artery on the right side), and then back up to the larynx.
Flaw: The detour is particularly extreme in giraffes, where the nerve travels an additional 15 feet down the neck before looping back up, instead of taking a more direct route from the brain to the larynx.
Human Spine:
Description: The human spine is a column of vertebrae that supports the body’s weight and protects the spinal cord.
Flaw: The spine is prone to issues such as herniated discs, scoliosis, and back pain because it evolved from a structure that supported a quadrupedal stance, not a bipedal one. The S-shaped curve in humans puts a lot of stress on the lower back.
Human Eye:
Description: The human eye has a retina that is inverted, meaning that light has to pass through layers of cells and blood vessels before reaching the photoreceptors.
Flaw: This setup creates a blind spot where the optic nerve exits the eye because no photoreceptor cells are located there. Some cephalopods, like octopuses, have more optimally structured eyes without this blind spot.
Prostate Gland in Males:
Description: The prostate gland surrounds the urethra just below the bladder.
Flaw: As men age, the prostate tends to enlarge, which can constrict the urethra and cause urinary problems. This placement and potential for growth cause discomfort and health issues.
Human Pharynx:
Description: The pharynx is a passageway that serves both the respiratory and digestive systems.
Flaw: The shared pathway for food and air increases the risk of choking. Unlike in some other animals, the crossover of these pathways can lead to fatal accidents if food enters the trachea instead of the esophagus.
Pandas' Thumb:
Description: Giant pandas have a modified wrist bone (the radial sesamoid) that functions as a thumb.
Flaw: This "thumb" is not a true opposable digit and is much less efficient than the thumbs of primates. It is an example of an evolutionary workaround rather than an optimal solution, allowing pandas to grasp bamboo but with less dexterity.
Vestigial Structures:
Description: These are remnants of organs or structures that had a function in early ancestors but are now either useless or repurposed.
Flaw: Examples include the human appendix, which is prone to inflammation and infection (appendicitis), and the pelvic bones in whales, which are remnants from when their ancestors walked on land.
These examples highlight how evolutionary processes often result in structures and systems that are not optimally designed but rather are modified versions of pre-existing anatomy adapted to new purposes.
The human birth canal presents several design challenges that can make childbirth difficult and risky for both the mother and the baby. Here are the primary issues associated with the "bad design" of the human birth canal:
Pelvic Structure and Bipedalism:
Description: Humans are bipedal, meaning we walk on two legs. This mode of locomotion requires a pelvis that is shaped differently from that of quadrupeds.
Flaw: The human pelvis has evolved to support upright walking, resulting in a relatively narrow birth canal. This narrowness makes it more difficult for the baby to pass through during birth, increasing the risk of complications.
Large Fetal Head:
Description: Human babies are born with relatively large heads to accommodate their well-developed brains.
Flaw: The combination of a large fetal head and a narrow birth canal can lead to obstructed labor, where the baby's head cannot pass through the pelvis easily. This situation can necessitate medical interventions such as cesarean sections.
Twisting Path:
Description: The human birth canal has a complex, curved path that the baby must navigate during delivery.
Flaw: Unlike in many other mammals, where the birth canal is more straightforward, the twisting path in humans requires the baby to rotate during birth. This rotation can add to the difficulty and duration of labor.
Risk of Birth Injuries:
Description: The strain on the mother’s body and the baby during passage through the birth canal can lead to injuries.
Flaw: For the mother, this includes tearing of the perineum, pelvic floor damage, and postpartum hemorrhage. For the baby, there is a risk of shoulder dystocia, where the baby's shoulders get stuck, leading to potential nerve damage or fractures.
Evolutionary Trade-offs:
Description: The evolutionary changes in the human pelvis and birth canal are a result of trade-offs between bipedal locomotion and the need to give birth to large-brained infants.
Flaw: These trade-offs have not led to an optimal solution for childbirth, creating a scenario where human childbirth is significantly more dangerous and painful compared to other mammals.
High Maternal and Infant Mortality:
Description: Historically, and even today in areas with limited access to medical care, the complications arising from the birth canal design have resulted in high maternal and infant mortality rates.
Flaw: The need for medical intervention during childbirth, such as the use of forceps, vacuum extraction, and cesarean sections, underscores the inefficiency and danger posed by the current design of the human birth canal.
These challenges highlight how the evolutionary adaptations for bipedalism and increased brain size have led to significant difficulties in human childbirth, reflecting a complex balance of competing anatomical requirements rather than an optimized design.