http://swtotd.blogspot.com/
Do science, technology and humanitarian relief affect natural selection, in regards to the human species? Will these developments have unintended adverse consequences for the propagation of our species? In studying evolution, Charles Darwin developed the theory of natural selection, which stated that only the fittest of any species would survive. In simple terms, that meant the healthy, strong and intelligent. In the interest of improving the human condition, have we altered natural development?
Over the four and a half billion-year life of our planet, thousands of species from mammals to plants have come into being and subsequently died out; so, too, will man, at some point. It is the natural order of things. What allows one species to survive longer than another is the ability to adapt to such inevitable changes as weather, pestilence and predators. While Homo sapiens date back a mere 100,000 years, there has been life on Earth for a long time. The Trilobite, for example, dates to the Devonshire Period, 400 million years ago. In the last few years species such as the Pinta Island Tortoise and the Western Black Rhinoceros have died out. Other species have recently been discovered, like the Carolina Hammerhead Shark and the New Turkish Scorpion.
Better medicines and healthcare and improved humanitarian efforts, like the Feed the World Campaign that began in Ethiopia in 1984, have allowed millions of children to live that only a few years ago would have died. The population of Ethiopia, during the ensuing thirty years has grown from 34 million to 86 million. The country remains one of the poorest in the world, with an estimated annual income per person of $410. While mortality statistics have improved substantially, infant mortality at 58.3 per 1000 births is still one of the highest in the world, as is maternal mortality at 590 per 100,000. Humanitarian aid has allowed the population to expand, but has done little for the well-being of the people. In the West, drugs and healthier lifestyles have allowed the average person to live longer, while some relatively newer practices, like better sanitation, risk compromising immune systems.