Evolution Definition and 706 Threads

:smile: microorganisms underwent changes in their dna to form new organisms. The better changed ones survived. The older ones died. The change was brought due to radioactive elements.

how did life evolve out of inanimate organic molecules is a question that has vexed scientists for decades now and no consensus has yet emerged on the issue. however there are many competing theories including RNA world hypothesis, khauffman's models and a bizarre proposition of an initial...

Hey guys; I just started a class in parasitology this fall, we haven't covered anything yet, just looked as some cases of people infected with parasites. I was wondering how obligate parasites could have evolved. My thinking is that they were originally facultative parasites that found a...

Could one of you scientists out there help me? A friend of mine is reading a book called 'Uncommon Dissent', which she says makes a serious claim for doubting the basic tenets of the theory of natural selection. I suspect that this book and its claims might be flat-earth stuff, easily debunked...

In human evolution, what is the result of 1+1 ? :-p

We all know Darwin's theory of how humans were once little monkeys running around, hitting other with sticks, but what about what humans will become? Some people have "psi power". Like control fire, look anywhere on earth, move objects with their minds. Is that what humans are going to...

can you bio pple help me. My brother and I were having a discussion, and we cannot resolve weather the humans and species in the world today actually evolved from other beings. I believe that the other species did, but I do not believe that for humans. Any help would be great.

I need a book for newie, can you introduce some for me to buy ? Thanks,

According to evolutionary theory, an animal goes through physical changes according to genetic mutations that occur, which in turn are influenced (is the influence direct or indirect?) by environmental changes. When a genetic mutations occur in humans for example, the result is a handicapped...

Know why the cicada have 13 and 17 year life cycles ? Is there a reason why evolution picked prime numbers for their life-cycles ? Check out this neat article in the Post : http://www.washingtonpost.com/wp-dyn/articles/A61426-2004May2.html

I've kinda grown up with computers since the mid 60's. The main difference in me and the computer is our Hardware. It appears to me that human evolution is moving at a snails pace compared to computer evolution. Weather we are talking about computers or humans, the kind of hardware you have and...

Either Sleeth or Canute, please flesh out your ideas fully here. I'm really curious about them. What is it that you think is the driving force behind the inception of life and what makes you believe this?

Jus a thought.

Can you tell me what the differences between the two are ? Thanks in advance Regards, >>>>I have some posts without having been received any replies so far, please click my name and check them out, then post help me please... I don't know what and how to do...please help.. Again...

suppose we have a single eigen-state finite potential well like following: V(x)= V, x<-a and x>a; 0, -a<=x<=a; say only one eigen-state within this well S1(x) when all of sudden this potetial well broden by size of 2 V(x)= V, x<-2a and...

So this morning, I wokeup and thought "mitochondria!" Weird huh? Why? Well, I thought of it as just another "proof" of evolution from a common ancestor. Not that anyone with an education should doubt it anyway, but just that we and bacteria have the same intracellular organelles should be...

Hi, I work with HERV and evolution and I am a new member of this forum.

let me start at the begining evolution is the process of species to continue survival so here came along single celled organisims, multi celled organisims then down the line came humans. with humans evolution took a larger new step, a second being inside a material one that comprehends the...

Seems that not much gets posted here lately. The link is to a simple chart that answers (in advance) some of the questions asked here. Note in particular the abundance label at the bottom of each class, with M Class stars being 80% ! See how few of the biggies (Class O, B and A) are either...

Baez recent paper "Quantum Quandaries" references one that Fotini Markopoulou wrote last year with Hanno Sahlmann and Eli Hawkins "Evolution in Quantum Causal Histories" http://arxiv.org/hep-th/0302111 I suspect I'm failing to get the point of this paper, so I mention it in case anyone...

i was once heard that life begin with one cell, and that cell is made up by chemicals water and other substence from aerolites. this is proved by someone i don't remmber. and then that cell was evolved (some how), and become so many species we have now, so that cell was the...

Until the mid-1980s, the understanding of the development of animal life was that it had followed the logical path of a gradual evolution with more simple phyla over eons leading into more complex phyla. With the rediscovery of fossils held quietly in the dusty drawers of the Smithsonian...

Edit. My ideas are incomplete.

[SOLVED] Evolution vs Intelligent Design Something to consider: Can Darwin's evolutionary concepts of small changes be consistent with an intelligent design that uses adaptic changes within a species but not the random chance of life from inanimate matter to create all life forms and specie...

BELOW ARE THE FIVE STATES THAT HAVE BANNED EVOLUTION FROM THE CLASSROOM, IN PUBLIC SCHOOLS. “Currently five states _ Florida, Illinois, Kentucky, Mississippi and Oklahoma _ have no references to evolution in their state school curriculums, according to the National Center for Science...

Ok here goes, I was thinking about how to improve artificial intelligence capabilities, and I was in biology and for some reason we were taking about neuron and cell capabilities to replicate DNA in mitosis. And then it hit me, if you could create a small self-contained application that would...

Here they go again. http://www.cnn.com/2004/EDUCATION/01/30/striking.evolution.ap/index.html Maybe we should change "superintendent" to "political administrator who proposes silly things"

I've been thinking about the development of life on this planet as seen by the scientific community vs. biblical creationist accounts, specifically Intelligent Design or Creator theories. Upon reading the book Chaos, by James Gleick, and other books, it has become apparent to me that chaotic...

Will evolution, which selects traits promoting survival, ever directly allieviate the fear and suffering of death? Perhaps that latter process shall remain more in the domain of society and faith.

This is a current topic of interest, can evolution produce organisms that are more prone to evolve? Doesn't this require group selection? Here is an http://www.pnas.org/cgi/content/full/95/15/8420 (courtesy of the Gene expression blog) which discusses evolvability at the molecular biology...

A newly released mosaic image from Hubble, with 4 billion pixels, covering a square of sky about 1/2o wide, with an angular resolution of 0.05", and a depth of 24 or 25 mag. "Not only does the GEMS study cover a large area at high resolution; it is also a three-dimensional map. Of the 60,000...

The density operador which describes an ensemble, \rho = \sum_{i} w_i |a_i> <a_i| (represented in the basis in which it is diagonal), evolves in time such that |a_i(t)> = U(t) |a_i> when the enemble remains undisturbed, i.e. the w_i do not change. But for irreversible processes the w_i...

Before Darwin's theory, the common view was (AFAIK) Lamarkian evolution. This theory required (again, AFAIK) that changes in the individual being were passed on to its offspring, and thus the great variety of species that exist today. Now this was proven wrong, by the Darwinians. However, what I...

What can fossil and other historical records tell us about ancient species' behavioral evolution, like we interpret from preserved physiology the progression of phenomes with genomes?

hi all, What do you think about evolution? I feel that it is not true due to various reasons. -Benzun. All For God.

It's commonly stated that all dogs are descended of wolves, and that it took anywhere from 20-50,000 years for a wolf to evolve into a s[FONT=arial]hit-zu, yet it took hundreds of thousands of years for homo erectus to evolve into homo sapien... Someone explain this...

Religion disproving Evolution and proving Creation through Science? Why must Religous leaders attempt to disprove evolution and prove creationism through science? A Biology instructor, I once had, made the comment: "This is science class, in science class we play science and in church we...

The trouble with epistemology is that it is tightly bound to metaphysics, and vice versa of course. Your epistemology is determined by your metaphysics, and your metaphysics is determined by your epistemology. The result of this indeterdependency is an evolutionary dynamic. Any particular...

Tell me if you think this is a possibility: It came to me in Church today. Could religion be instilled in us through evolution as a way of allowing us to have intelligence and consciousness and not kill ourselves in large amounts? If everybody realized that there was no point to life aside...

I didn't know really where to put this, but here goes. I am a high school student who before reading about intelligent design proudly belived in darwisnism. After reading books such as "Darwinism Under the Microscope" and "Darwins Blackbox" I fully lost belief in darwinwism and actually...

I've got myself into a debate about whether Evolution is currently occurring in Humans. So far, with my initial thoughts on the subject, no matter how I approach the topic, I can only formulate Affirmative arguments. Can anyone think of any sort of case that can be built against the stance that...

I have observed that many people have question about evolution. When I look back at high school we got to learn the classical model (see diagram below) of evolution and this model was also though in the university level zoology and plant biology whereas in microbiology we got to learn the Woese...

Obviously we cannot deny that gradual evolution occurs. This is obvious, and readily demonstrable. However, there are some apparent "gaps" in the fossil record (which creationists are quick to jump on as evidence of God's having created the different "kinds" individually) that lead one to think...

What is the main cause behind mutation in evolution?

Well, everyone asked for it! I read atleast 5 or 6 posts that had some reference to the want of this topic. I've studied Evolution and Creationism for almost 2 years now. So I'm up to any challenges concerning the matter. I don't know the appropriate way to start off, so I'll leave it up...

It occurred to me that the existence of localized time reversal would manifest an evolution that relies more on free will than genetic determination. The connectivity between two events completing a time loop takes place arbitrarily to Darwinism, either fulfilling spacetime continuity or...

Greetings ! Abviously our feet have evolved to be different after we got down from the trees. Further more, the fingers on our feet are now small and of rather little use by comparisson. Have there been any reseacrh works or maybe those adaptation computer studies (like the one where the...

Hmm... I have a new hypothesis on how knowledge (or at least, scientific knowledge) works. Knowledge, imho is does not proceed from divine inspiration, or random spurts, or gradual building up, but in a combination of these processes via a system akin to evolution. 1. Mutation. This comes...

I'm not positive that this is the appropriate Forum to post this thread in, but I trust that it will be moved if it needs to be. I've been thinking about the cornerstones of the different fields of Science. By "cornerstone", I mean a theory that is at the very heart of practically ever...

First off, I do believe in evolution. But I was thinking, Evolution is based on natural selection, the survival of the fittest. Insects are extremely strong, fierce, and capable for their sizes. Why would it just happen that insects are so small? It almost seems as if this situation was...