On this day in 1859, the age of modern science began.
One hundred and fifty years ago today, Charles Darwin’s "On the Origin of Species" was published.
Even though there are still some Americans arguing about its contents, there is little debate that Darwin’s book helped launch a revolution of scientific inquiry that continues to this day.
Darwin’s theory of the evolution of organisms was not entirely new. Ancient Greek philosophers such as Aristotle offered glimpses of it and more modern philosophers, from Bacon on, added to the understanding that plants and animals did not just magically appear fully formed on the Earth, but changed and developed over eons.
However, it was Darwin who seized upon the idea, inspired by Thomas Robert Malthus’ theories on overpopulation, that "favorable variations would tend to be preserved, and unfavorable ones would be destroyed. The result of this would be the formation of a new species."
According to Darwin’s theory of natural selection, those organisms that were better able to adapt to their environments were more likely to survive and reproduce than those that had trouble or could not adapt. These favorable variations are then transmitted to successive generations. Variables such as food, predators, disease and climate change makes the numbers of a species go up or down. And, ultimately, every species’ fate is interconnected with that of every other species.









