Mythbusters: Intelligently Designed Humans

One of the most common arguments for the existence of God, particularly from Creationist and Intelligent Design advocates, is the human body.  They will often cite Bible verses that claim humans are “fearfully and wonderfully made” and designed in God’s image.  We humans have a very long history of being full of ourselves and unfortunately religion has only reinforced this view.  Since Darwin’s breakthrough discoveries regarding human origins, science has come to understand homo sapiens real place in the natural world.  Despite geneticists proving through DNA that humans are in fact, evolved from other animal species, there are many who still want to believe that we came into existence just as we are and are the greatest of all creation.

Let’s suppose for a second that human were designed by an intelligent creator  and really are the greatest of all creation.  Shouldn’t this intelligent design be evident in our makeup and abilities?  Shouldn’t humans have a long, glorious history of being “king of the jungle”?  You would think so, but that’s not what we find at all.  Let’s look at some examples of design flaws in humans:

  • One of the things that sets apart humans from other mammals is our ability to walk upright, or be bi-pedal.  This frees up our hands to do others things like use tools.  With this advance came the increase in size of our craniums.  But with evolution, everything comes with a cost.  Our skeletons were developed over millions of years of walking on all fours and having relatively small heads.  The price paid for becoming bi-pedal and having larger craniums is having back problems, foot problems, and stiff necks.  Women paid extra.  An upright gait required narrower hips, thus constricting the birth canal.  This not only made childbirth painful, but also dangerous.  Prior to modern medicine, childbirth often lead to the death of the mother and/or child.
  • Speaking of children, human infants are some of the most helpless of the mammalian species.  Colts are able to run only hours after being born, and a kitten can forage for food on its own after only a few weeks.  Humans, on the other hand, are totally helpless and dependent for many years on their elders for sustenance, protection and education.  This poses a problem for the mothers as well, as a lone mother can hardly forage enough food for their offspring and themselves with a needy child in tow.
  • Compared to other creatures, humans are relatively weak and marginal.  Despite having large brains and inventing the use of tools, humans still spent around 2 million years somewhere in the middle of the food chain.  Our sense of smell, eye sight, and hearing are no match to other mammals.  Our overall strength, speed, reflexes, and agility is also outmatched by hundreds of other species.  Humans lived in constant fear of predators, were always in danger of exposure from the elements, and had to forage for food daily just to survive.  This did not change until the Agricultural Revolution, which brought its own set of problems.
  • Of all the things that a human can die from, diseases accounted for more deaths then any other.  Every since the Agricultural Revolution when humans were forced to live in close proximity to animals and other humans, diseases have wiped out untold amounts of the human population.  Why do humans have such weak immune systems?  A wild vulture can eat anthrax and not be affected thanks to their strong stomach acids.  Cockroaches are well known for their survivability, even able to withstand nuclear radiation.  Yet humans can be taken down by a simple cold.
  • Some species of coral and sponges can live thousands of years.  Bowhead whales can live over 200 years. A lobster can live to be over 140 years old, as can a tortoise.  There are in fact, hundred of species of animals that live well past 100.   Yet humans life expectancy is roughly 80 if you live in a developed county, thanks to modern medicine.  At the turn of the 19th century, life expectancy in the US was only 46.  During the Bronze and Iron Age it was 26.
  • One of the unique features of some lizards is their ability to grow back their tails should they lose them.  This is a good escape technique, as a lost tail will continue to wiggle, which might distract the predator and give the lizard a chance to escape.  Most lizards will have regrown their tail within nine months.  Other spices of animals also posses this neat trick, know as regeneration.   The Mexican axolotl can regenerating a missing limb; tail; and parts of their brain, heart, and lower jaw.  If they’re paralyzed in the back they can recover the functions of their legs by making all new neurons and new connections.  Starfish also have the ability to regenerate their arms and sometimes their whole bodies.  Why aren’t humans able to grow back missing limbs?  It’s clearly not outside the realm of nature, yet no amount of medical treatment or prayer has ever brought back a missing limb.

The fact is, the only things that set homo sapiens apart from other animals is our cognitive capacity and our ability to cooperate in large numbers.  

If you want to believe that humans were designed by a God, you have to then explain why he did such a shitty job of it.  I’ve demonstrated just a handful of ways in which humans fail to be the pinnacle of creation despite the prevalence in nature of better designs.  If humans are the greatest of all creation, why not incorporate some of the amazing abilities found in other animals into humans to make a species that would experience far less suffering then humans have?  If humans are designed by a God, he needs to go back to the drawing board.

However, the design flaws in humans make perfect sense when viewed through the lens of evolution.  Natural selection provides a working model to how humans evolved and why.  Evolution is a give-and-take system; if an animal increases in efficiency in one area, it will decrease in another*.  Human’s large craniums gave us a larger brain which lead to our greatest asset – our cognitive abilities.  But powering that brain takes a tremendous amount of energy, which meant compromises had to be made.

The weaknesses found in our species has led to untold numbers of deaths and immeasurable suffering.  It’s time humans accept their place in the natural world.  It’s time we stop fooling ourselves into believing that we are somehow “special” and intelligently designed.  We are simply animals, or as Robert Ardrey wrote, “We were born of risen apes, not fallen angels”.

With this knowledge we can work towards caring for and sustaining nature so that we can preserve the world for future generations.  Humanity has risen to the top of the food chain, but with that comes the responsibility of making sure we don’t screw it all up.

Thanks for reading.

 

* For example, elephants have no natural predators they need to worry about thanks to their large size.  However their large size means they can only have one offspring at a time and they have a two-year gestation period.  In humans, our large craniums meant greater cognitive abilities, but it also meant more difficulty and potentially life-threatening births.

 

 

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