How does evolution actually work?

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How does evolution actually work?
Tweet Topic Started: Jul 17 2015, 02:43 PM (1,592 Views)
Zoom	Jul 17 2015, 02:43 PM Post #1
Posts: 3,426 Group: Member Member #12,146 Joined: March 16, 2015 Gender Male	People always talk about evolution, but how does it work exactly? and how does it work in terms of the big bang?



+ Pelador	Jul 17 2015, 02:54 PM Post #2
Crazy Awesome Legend Posts: 25,663 Group: Legend Member #4,634 Joined: December 12, 2009 Gender Not Specified Country None Favourite Anime HunterxHunter What Browser do you use? Firefox Favourite Manga Dragonball	So first of all we need to understand that all organic life forms are essentially made from acids. Since acids are chemicals, they react to the most subtle changes in the environment. These slight changes sometimes effect the lifeforms in a way that is noticeable. For instance if you put a domestic pig into the wild then it doesn't take very long for it to transform into more of a warthog like creature. However the biggest changes occur over generations. This is because when breeding, two different types of acids, specifically deoxyribonucleic acids merge together and form a new life form. Obviously when this keeps happening for millions of years or sometimes even after a few decades then you end up with a vastly different life form. And since every creature's DNA will respond differently to environmental conditions, this is why no two life forms look the same and it is how our ancestors, the homo-erectus was able to evolve into two different species. Homo-sapiens and Homo Neanderthalensis.
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Zoom	Jul 17 2015, 03:04 PM Post #3
Posts: 3,426 Group: Member Member #12,146 Joined: March 16, 2015 Gender Male	So what is needed for evolution to work? How does it choose which animal or universe to survive and how does it adapt?



SpeedoTrunks	Jul 17 2015, 03:14 PM Post #4
Posts: 908 Group: Member Member #9,238 Joined: March 22, 2013 Gender Not Specified	Evolution is just something that happens naturally, via changes to the organism it self. Be it plant or animal, half the time the changes are so minute you wouldn't notice the change, and often times the changes in the organism are always for the better. But the ones with the advantage gaining changes, live longer and thus pass on this new genetic change to its young/descendants, thus allowing the next generation of whatever it is, to be more suited to the environment it lives in.



+ Steve	Jul 17 2015, 03:17 PM Post #5
Greetings. I will be your waifu this season. Posts: 19,471 Group: Legend Member #5,710 Joined: February 7, 2011 Gender Male Country United Kingdom Favourite Anime Hunter x Hunter(2011) What Browser do you use? Mozilla Firefox Favourite Manga Berserk all day erry day	Whatever is strong enough to survive it's changing environment adapts and gradually evolves to thrive in it or leaves and/or leaves and adapts to a different environment. Hence why you have similar creates in different countries/continents but with some major differences, such as having developed a thick coat in a cold area or having very little hair in a warm area.
	Definitely not a succubus, fear not


SpeedoTrunks	Jul 17 2015, 03:25 PM Post #6
Posts: 908 Group: Member Member #9,238 Joined: March 22, 2013 Gender Not Specified	Quote: and how does it work in terms of the big bang? Just seen this. From what I recall, it has almost nothing to do with the bang. The Big bang it self if the supposed creation of the universe and the most popular theory (in terms of potential evidence to support it). Of the information I had read up on that subject, its the mere fact the not all matter is perfect that caused the creation of the universe to truly work. Due to the literal "bang" involved in this, this would spread matter out evenly across the dark space of the universe. If not for at least one of the atoms being at fault, in some minute way, this would not have allowed for the atoms to start pulling together, to form the first cloud of dust/planets/stars and everything else in the known universe. Once our solar system was created, via the cloud of gaseous dust that ignited our own star "The Sun", the earth it self was in the suggested "habitable zone" to allow liquid water, and again if not for a natural fault in all atoms (when all things from man/animal/plant to star/planet/universe itself have an end point somewhere down the line), this again would not allow for the first life forms to appear in the oceans of the ancient world, and all to start naturally evolving due to the need to pass one ones genetic material before you die. Due to this need to pass on the genetic material, all life forms reproduce (in some way) and then along with the natural changes in the life forms body to allow it to adapt and thus live longer, the chances of reproducing are higher.......and so on and so forth. So for the essay, but it got me thinking.



Zoom	Jul 17 2015, 03:29 PM Post #7
Posts: 3,426 Group: Member Member #12,146 Joined: March 16, 2015 Gender Male	How does it change from bacteria size creatures to blue whales and t-rex? Also what does scientists mean when they say animals go through an arms race, predars evolved with claws and teeth, and other animals like the plant eaters grow in size. That is what i mean by how does evolution choose, how does an animal grow teeth and weapons if previously they didn't had any?



Tinny	Jul 17 2015, 03:54 PM Post #8
Posts: 6,060 Group: Super Moderator Member #12,355 Joined: May 24, 2015 Gender Not Specified Favourite Anime Silver Spoon, Fate/Zero, Legend of Galactic Heroes, Space Patrol Luluco, Psycho-pass, Miss Kobayashi What Browser do you use? Chrome, Edge Favourite Manga Wizard's Soul ~Holy War of Love~	Wonton Soup Jul 17 2015, 03:29 PM How does it change from bacteria size creatures to blue whales and t-rex? Also what does scientists mean when they say animals go through an arms race, predars evolved with claws and teeth, and other animals like the plant eaters grow in size. That is what i mean by how does evolution choose, how does an animal grow teeth and weapons if previously they didn't had any? It happens over the course of generations, like a mutant is born, and if that mutant lives it can pass down it's genes onto it's children, while those without it tend to die more so than the other, and the process happens again and again. The taller ones get to eat things that are too high for most, they live and when they have children they might be a bit taller, and so on until they get to where they can eat off trees, the tallest source of food. It's really quite random, it's just a matter of who survives and breeds, as it progresses on and on until the whole species looks very different. They don't grow teeth at first, they grow something that can be used to defend themselves, or crush potential sources of food then survive and eventually it just continues as some live and some die until you eventually get claws and teeth. Edited by Tinny, Jul 17 2015, 03:55 PM.
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+ Ginyu	Jul 17 2015, 04:08 PM Post #9
Leve Feyenoord 1! Posts: 4,490 Group: Elite Member Member #9,685 Joined: June 30, 2013 Gender Female Country Netherlands Favourite Anime NJPW What Browser do you use? Chrome Favourite Manga Reading is for nerds, yo!	I think it's important for you to realize that the animals themselves don't chance, they live their life, have sex and die. They're born with certain traits. All of those traits are the results from pieces of information stored in your genes. If you're traits are good for survival (like having a libido, having claws to protect yourself, having smarts to survive, having teeth to eat, having a working digestive system to obtain nutrients, etc.) then you will live on and mate with another organism from your same species that also has traits for survival, together you create a child with a mixture of those useful traits. This chain keeps going and going for billions of years thus creating several complicated species designed for surviving and mating.
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SpeedoTrunks	Jul 17 2015, 04:41 PM Post #10
Posts: 908 Group: Member Member #9,238 Joined: March 22, 2013 Gender Not Specified	You should watch Cosmos with Neil Degrasse Tyson, as it pretty much answers everything you've been asking. Its a process that takes Billions of years, via the organism need to survive and pass on its DNA, this is essentially the point of all living things. IE with teeth, animals most likely never had teeth at all, and due to the first genetic mutation grew the first basis of what teeth would become to grind down its food. Over the next billions of years this become some more and more each time, until it became suited for that particular animals purpose.



Buuberries	Jul 17 2015, 08:18 PM Post #11
No Posts: 7,150 Group: Members Member #8,753 Joined: December 30, 2012 Gender Not Specified Country None Favourite Anime The Passion of Christ What Browser do you use? Christianity Favourite Manga The Bible	via natural selection is the most supported theory right now.
	¯\(°_o)/¯


Zoom	Jul 18 2015, 12:50 AM Post #12
Posts: 3,426 Group: Member Member #12,146 Joined: March 16, 2015 Gender Male	But how did the first orgamism or whatever they are called copied themselves? Evolution forces us to beleieve that we didn't come from a one person or one ebing, our species evolved, but from what and how the proccess get started. My main question is if evolution is a process of natural selection, then how did it get started to self aware that it needs to copy itself and more importantly how does evolution not start over again? You'll think the 4-5 billion year cycle on earth there would be creatures with improper mixed parts like horse with a donkey head or staff like that.



+ Sandy Shore	Jul 18 2015, 01:57 AM Post #13
Posts: 1,860 Group: Elite Member Member #12,337 Joined: May 18, 2015	Wonton Soup Jul 18 2015, 12:50 AM My main question is if evolution is a process of natural selection, then how did it get started to self aware that it needs to copy itself and more importantly how does evolution not start over again? You'll think the 4-5 billion year cycle on earth there would be creatures with improper mixed parts like horse with a donkey head or staff like that. Nobody yet has an answer to abiogenesis (life from non-life), but the first self replicating organisms needn't be~~---~~and most certainly weren't~~---~~self aware. It's not a requirement; evolution is not a conscious action. The reason evolution does not "start over again" is because it's still on going. It never stops. Quote: You'll think the 4-5 billion year cycle on earth there would be creatures with improper mixed parts like horse with a donkey head or staff like that. There's no such thing as "improper mixed parts" when it comes to evolution. If a species has a particular trait then it is because that trait is beneficial to them. Or, has been at some time in the recent past. If it resembles another species, then they are most likely closely related. Having said that, there have been innumerable animals with defective mutations. Due to natural selection however, they fail to succeed. This prevents undesirables from making it very far. A mutation is essentially random; a variation of existing data is put forth by genes when off-spring is made. If this data is beneficial, then the genes will unconsciously~~---~~that is, just by its very nature~~---~~develop it as it gets passed on more and more. Eventually this might culminate in a rudimentary eye, say. If you're wondering how we got from there to the seeming perfection of animals~~---~~seeming, because they're not~~---~~then remember just how long nature has had to refine this process, and get it to where it is now. A very long process of trial and error.



Zoom	Jul 18 2015, 02:08 AM Post #14
Posts: 3,426 Group: Member Member #12,146 Joined: March 16, 2015 Gender Male	That's is what i don't get. How does mutation work in making animals live in their enviroment? As far i know dna copies itself perfectly almost everytime, the time it doesn't that is where mutation occars. I understand that bit, but i don't how that can produce creatures to grow larger and larger or grow teeths and weapons to hunt them down.



+ Sandy Shore	Jul 18 2015, 03:11 AM Post #15
Posts: 1,860 Group: Elite Member Member #12,337 Joined: May 18, 2015	Let's say better resistance to the cold is beneficial for the species to survive. A human has two children; one has a genetic variation that has allowed their body to better adapt to the cold than the other - ever so slightly. They both successfully reproduce, as do their children etcetera. Every now and then the genes push this a little further because it's working. That is, it's making it to the next person. 500 years later an incredibly cold winter occurs. The branch that stemmed from the human who's genetic coding allows their body to better withstand the cold, will survive in greater number than the other branch. They will therefore go on to spread this gene far more successfully - due to their greater number. Not only that, but a code has occurred at some point that makes the people seek and reproduce with someone who shows signs of displaying this genetic ability. Over thousand of years, after lots of weeding out those undesirables and promoting the desirable, we get a species that is well adapted to it's environment. Swap out "resistance to the cold" for "better protection from predators", or "better eye-sight to catch prey", and it's essentially the same. An improved genetic variation will out populate and spread better than a stale or inferior (for this particular animal) genetic variation. That's the basic premise. Edited by Sandy Shore, Jul 18 2015, 03:22 AM.



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