Here's a simple example of evolution in action - bacteria.
Evolutionary changes can happen very fast in smaller, simpler types of living things. For example, many disease causing bacteria can no longer be killed with some of the antibiotics that were designed to eradicate them. These medicines have only been in use for about eighty years, they used to work, then they became less effective and now many of them are useless. Why?
The bacteria evolved so that they could survive the attacks from these drugs.
Bad example of evolution. The problem is that all that really happened were that those bacteria of a given species which had a natural immunity survived and grew in numbers. They didn't change in any real respect any more than a group of homo sapiens living near the equator became anything other than dark-skinned homo sapiens (has it never intrigued you that, despite the outward diversity of all the human "races" there are no new types, all are one species). It is a well-known fact that take away the stressors (i.e. the antibiotics) from a given bacterial community antibiotic resistant strains will reduce in numbers to pre-antibiotic characteristics within a few generations (much the same happened to the famed peppered moths of industrial England when the factors became less polluting). The phenotype was present all along in the bacterial communities and never completely disappeared, they simply reassert when conditions change. And that result is replicable, making it scientific fact.
I've been through my statistic and probability courses and find the arguments mentioned against the creationists probability arguments unconvincing. Sure, maybe it can be argued that creationists overstate the odds by an order of a few magnitudes, but even if we factor for that we still end up well outside the accepted delineations between what is theoretically possible or not. Apparently I am not the only one who sees it that way since scientists with more brilliant minds than mine engage in the speculating on the existence of so many billions of parallel universes to dilute the odds.
It fascinates me that after proving that abiogenesis cannot occur (it used to be called spontaneous generation of life), Science now holds it up as the only possible way life could've happened. But then when one limits one's possibilities to those conforming to atheism, one must embrace the impossible.
Forscher