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Title: Stunning Videos of Evolution in Action Post by: CoinCube on September 11, 2016, 11:59:58 PM http://www.theatlantic.com/science/archive/2016/09/stunning-videos-of-evolution-in-action/499136/
Quote Their set is a large acrylic dish, four feet wide and two across. It is filled with a nutritious agar jelly that contains varying amounts of an antibiotic. The outermost sections are free of the drug—a safe zone in which microbes can easily grow. But as they move towards the dish’s centre, the concentration of antibiotic goes up in 10-fold increments, and conditions become increasingly deadly. To survive in these toxic zones, they need to evolve resistance. And that’s what they do. At the start of the video, bacteria are dropped into the edges of the dish and soon colonise the outer safe zones. Then they hit their first antibiotic wall, which halts their progress. After a few moments, bright spots appear at this frontier and start spreading outwards. These are resistant bacteria that have picked up mutations that allow them to shrug off the drug. They advance until they hit the next antibiotic zone. Another pause, until even more resistant strains evolve and invade further into the dish. By the end of the movie, even the centre-most stripe—the zone with the highest levels of killer chemicals—is colonised. http://www.strangescience.net/pics/ev_bigpetri5.jpg https://www.youtube.com/watch?v=plVk4NVIUh8 Title: Re: Stunning Videos of Evolution in Action Post by: BADecker on September 12, 2016, 06:24:29 AM So? What is evolution. When scientists get around to understanding any of the mechanism of why this works the way it does, they will find that it is built-in operations, that are not random happenings, but are operations that are encoded into the DNA one way or another.
The real point is, are things happening by random chance? Or are they happening by cause and effect programming. "Evolution" is a word. It can mean anything somebody defines it to mean. Cause and effect is like a string of dominoes, each domino being reacted upon in such a way that it reacts on another. This is all you find going on in a petri dish, or a large petri-like dish... complex strings of domino-like actions and reactions. Regarding the petri-like dish... you don't find sustained petri dishes in nature. People can build all kinds of things. In this case, they built what they call mutation in action, also known as what they call evolution. You don't find such as this sustained in nature. Is this all the further science has come since Darwin? At this rate, it will be a million years before they find the cause and effect machinery in nature, if they ever do. 8) Title: Re: Stunning Videos of Evolution in Action Post by: Spendulus on September 13, 2016, 11:53:44 AM So? What is evolution. When scientists get around to understanding any of the mechanism of why this works the way it does, they will find that it is built-in operations, that are not random happenings, but are operations that are encoded into the DNA one way or another. The real point is, are things happening by random chance? Or are they happening by cause and effect programming. "Evolution" is a word. It can mean anything somebody defines it to mean. Cause and effect is like a string of dominoes, each domino being reacted upon in such a way that it reacts on another. This is all you find going on in a petri dish, or a large petri-like dish... complex strings of domino-like actions and reactions. Regarding the petri-like dish... you don't find sustained petri dishes in nature. People can build all kinds of things. In this case, they built what they call mutation in action, also known as what they call evolution. You don't find such as this sustained in nature. Is this all the further science has come since Darwin? At this rate, it will be a million years before they find the cause and effect machinery in nature, if they ever do. 8) It's a poor article, as if the writer for the Atlantic did not truly understand science. It can be assumed that the scientists did account for other factors, and did test DNA sequences before and after, and that they are therefore showing "evolution in action." These guys are well aware of issues such as epigenesis. https://en.wikipedia.org/wiki/Epigenetics Title: Re: Stunning Videos of Evolution in Action Post by: RealityTruth on September 13, 2016, 12:42:47 PM Didn't see any proof of evolution there :)
Title: Re: Stunning Videos of Evolution in Action Post by: Tyrantt on September 13, 2016, 04:27:09 PM Didn't see any proof of evolution there :) Adaptation. They've adapted to the suroundings, that's the bone of evolution. |
