Don't blink, you might miss this

Have you ever wondered how we have become so complex? This is because of an incredibly simple force, though many fail to understand it's basics. I am talking about evolution. Most simply put, if you don't have the means to survive, you can't leave your traits to future generations. If you have what it takes to make it to the age of reproduction, congratulations you will leave some variation of yourself walking around this floating rock through space. This process has taken roughly 3.5 billion years to form our ironically beautiful species. What if we could see this process happen right before our eyes, in our own lifetime? Researchers from The University of Texas at Austin have seen this driving force in a population lizards on islands off the coast of Florida. What drives evolution is selectivity. This can be anything from climate to soil content to a pesky neighbor and in this case, it was the latter. An invasive species forced these lizards to climb higher in the trees and their toe pads are getting larger. What makes this special is the fact it's only taken 15 years. Yeah, compare that to the millions it usually takes. But this makes me wonder, could we ever see this change in humans? Our longer generations suggest we can't. There are some cases where some populations are growing larger, most likely due to better nutrition and food availability. I think a human experiment would provide invaluable information on the mechanism behind evolution. But would that be considered eugenics? Is it unethical to selectively breed our own species?

Source : http://www.sciencedaily.com/releases/2014/10/141023142306.htm