An Artificial Environment

COLEGIO SAN BARTOLOME LA MERCED
NINTH GRADE
___________________________________________________________________
An artificial environment (2% away from the jungle)
By: Humans

Everything regarding human evolution is about the divergence of Homo Sapiens Sapiens from other species. Our history comes from really long ago, scientists that study this topics make an approximation of when is itthat our species appeared, stating around 200.000 years ago (giving 75 million years for primates and 28 million years for apes), but that isn't actually what's important, the 'big deal' here is from where is it that we came and where are we going. Our appearance is the result of thousands or even millions of years of small changes in our primate ancestors. Among our ancestors we can find differentexamples as (just to list some them):
H. antecessor
H. erectus
H. floresiensis
H. habilis
H. neanderthalensis
H. rhodesiensis
H. rudolfensis

All type of evidence that has come from what paleontologists have found points to the fact that all the species listed above are our ancestors.
To put everything in common words, what happened here is that there were apes, and at some pointthrough little changes in the DNA (mutations) and natural selection, a 'root' appeared, starting a whole different family that going through different stages of evolution finally lead to us.
At some point apes began standing in two feet (reasons for this are still discussed, clearly “bipedalism is a highly inefficient form of locomotion. In terms of the energy required to move proportionately equalunits of body mass over given distances, humans are not much more efficient than penguins.”),
We have truly exceeded Earth’s carrying capacity in some spots around the globe. In terms of density there are evident disequilibriums around the globe. Accumulations of people make huge densities to appear in certain spots and low to none population in other places. A clear example is -according to UN-Macau (China) which has a density of 19.716 inhabitants/km², while in French Guiana there’s a density of 3 inhabitants/km².
While in animal populations we can determine how much will they grow if we know how many individuals are there currently, an approximation like that one regarding human population will be too risky to do, since we behave erratically, we are encouraged or stopped by what wethink, hear and see. Factors that are absolutely irrelevant to any other animal in the world.
Animals don’t have world wars, they don’t increase their birth rates after a big losses of population, they don’t have religions or beliefs that force them to do things that have something to do with how they reproduce. Their individuals don’t have second opportunities when one of them is infertile. Theyjust have a ‘instructions manual’ written in their heads, their instinct, and doesn’t matter what happens they can’t skip those rules. When natures tells them something it’s just the way it is, nature’s ‘word’ is indeed the last word, the verdict, and they don’t have anything to do with that choice.
Our population on the other side has all of this things and more. Everything that is said hasdifferent types of repercussion over individuals around the world. Just in the World War 2nd there were over 48’231.000 casualties, representing something like 2% of that time’s world population. An unprecedented conflict that no other species has seen.
Nature’s decision is everything to an animal, to us it’s more like a whisper, we may hear it or we may not. If we do or don’t doesn’t affect us toomuch, we are more ‘touched’ or moved by things we consider or greater importance. And this word in a population will have big effects on the world, but in the case of humans, that changes. For example, if a man marries a woman that has got a son, nature would probably say “don’t take care of him” or even “kill him” -since he doesn’t carry the man’s genes-, on the other hand he won’t act according...