Evolution, Morphology and Exobiology

...that the building blocks of life are EVERYWHERE in the universe. In the dark void. In the solar winds. Perhaps in suspended animation. It just so happened that the other 8 planets are dead worlds. Whereas the seeds of life couldnt take hold on those desolate worlds, Earth was the one where it could flourish. That this same process is going on in other exo-solar systems? Its possibly nothing special about Earth, and that the seeds of life are all over space, the other 8 planets being unsuitable.

How emotions are associated with colours and why certain people love / attracted toward certain colours ? Is it because we started seeing colours when we were evolving . We also started analysing colours when we born . and since then we have seen open spaces full of sun light and other bright lights and we have also seen closed spaces with dark colours . We have seen red colour in blood and if spilled somewhere , indicated that someone of our species has been harmed , making us alert . So we were programmed to act in certain way when we see colours and hence our evolution has occurred with certain hormones making our emotions to flow while seeing colo…

How is that to explain? Darwin thought Finks with different mouth shapes are different species????

Three questions 1) If the first life forms c 4y.billion ago lived about 24 hours (?) and we now live about 80years, in another 4y.billion will life expectancy continue to increase in a straight line and our descendants will have lifespans of 2.5y.millon?? If so it will certainly make intergalactic travel more practical! 2) Is our species H.Sapiens continuing to evolve? Will our descendants become a new species or species? 3) Will the natural course of evolution without human agency cause the dinosaurs or something like them to evolve again in the far future? Cheerz GIAN 🙂

Intuitively it should be very close to zero if not exactly zero. There are three reasons your bloodline could end. The first being that you or your children or your grandchildren just end up not having children for some reason. It happens. However once you get past that hurdle and you have quite a few descendants it is almost impossible that your bloodline would end solely because nobody had children, and then the next reason your bloodline could end would be some catastrophic event such as a war, asteroid impact, or some other high fatality event. For example, my grandfather was one of 13 children, and 6 of his siblings died during WWII. It's not hard to imagine that som…

People, The first form of life on Earth came about by combining key molecules together (amino acid chains, etc etc) "by chance", perhaps spanning over a millions years or so. One assumes this requires energy (lightning, heat from a cooling Earth, chemical reactions, Laws of diffusion, etc), but would this process be in opposition to the laws in physics/chemistry where an environment tends to favor lowest states of energy? If so, the low state of energy would favor the opposite of the creation of the first life forms and even evolution. I am a bit puzzled here, and admit confusion so, comments/clariification is much welcome and appreciated in advance.

I wonder what the first terrestrial animal was and how it evolves from a marine creature. What kind of land was there (does plants already lives on earth?). Note that by "animal" I mean any creature that can be considered to belong to the animal kingdom whatever it is (insects, worms, whatever...). Many answers on the web seems to mistake "animal" and "vertebrate". When did it emerge?

Hi all, I read that phylogenetic trees are one of the strongest evidence of evolution, because we get a very similar trees for different genes and proteins. But I can’t find anywhere ANY concrete/specific numbers. How many phylogenetic trees where constructed so far? 1000? 50,000? a million? How similar are they to one another? 99%? 95%? 80%? I would really like to see some numbers, where can I find them? I’m asking this because I came across a video claiming that phylogenetic trees do NOT support evolution: https://www.youtube.com/watch?v=lk1gDk1wGhQ&t=5m52s So, if you have some numbers it will really help. Thanks.

I would assume that afro hair developed as a way of protecting against UV radiation. My question is, why didn't any other mammals develop a similar style of hair? It seems odd that only humans developed this trait.

Can any forum member make it simple to make me understand how did so many varieties of plants develop on the earth?

Hi all, Can you please debunk these 2 videos about Evolution? 1. https://www.youtube.com/watch?v=wq_oYftA2ow 2. https://www.youtube.com/watch?v=lk1gDk1wGhQ Basically the first one claims that we have found many Fossils which are in the wrong order, the second video says that there are many DNA examples that Contradicts the evolution. Please help me find answers for this videos. Thanks!

That was news to me,bacteria being able to exchange DNA with eukaryotic cells. I was unaware of that fact. Bacteria can also exchange DNA inter-specially. That means between different species of bacteria by way of this method called conjugation. There are two other ways bacteria have of exchanging DNA amongst other bacteria. If you would like to learn more about all this go to : http://www.slic2.wsu.edu:82/hurlbert/micro101/pages/chap9.html . There are some interesting aspects to all this and much to learn at this website. There are some important practical aspects to bacteria`s ability to transfer genetic material by conjugation. A single cell carrying an anti-biotic res…

I've been watching a video related to how blood began to exist and the person in the video stated, "Human blood for example Has 13 ingredients , if you take each one separately and add them to the mix , you won't get blood. All 13 ingredients have to arrive at the same time. " Is this true? I'll appreciate your response, thank you.

I am working on a project and need your help Can anyone point me to a comprehensive list of the PhytoChemical FAMLIES i.e. alkaloids, glycosides, polyphenols, and terpenes Thank you Brad

Hello everyone I have bit off a little more than I can chew with a project i am working on. First off it should be known I AM NOT a chemist, far from it, so I am a little out of my league with this project. I am trying to find out what are the names of the CATEGORIES of chemical compounds found in plants, both on the primary and secondary metabolite levels. I am NOT looking for the names of the individual compounds. For example I know on the primary metabolite side, Carbohydrates is one category ( am not looking for all the names of the sugars ie mono, di polysacarides, and their sub catagories nor the starches... ) I believe that sugar alcohols such …

https://tokyo3.org/forums/holiday/?main=https%3A//tokyo3.org/forums/holiday/welcome/ Scientists Find The First-Ever Animal That Doesn't Need Oxygen to Survive MICHELLE STARR 25 FEB 2020 Some truths about the Universe and our experience in it seem immutable. The sky is up. Gravity sucks. Nothing can travel faster than light. Multicellular life needs oxygen to live. Except we might need to rethink that last one. Scientists have just discovered that a jellyfish-like parasite doesn't have a mitochondrial genome - the first multicellular organism …

Hello This is a question that I would like someone with insights in evolutionary theory to answer. I am neither a scientist nor have I studied the subject of evolution. I am now halfway through Richard Dawkins essay-collection Science in the Soul, and I have a question regarding evolution, which Dawkins adresses a lot as a subject. One of the basic principles of evolution is «survival of the fittest», but in my opinion that no longer seems to apply to the human race. I for example have severe allergies, and would probably not be alive 10 000 years ago. Either because I could not eat certain foods to sustain myself, or I would die from a fatal allergic react…

Hello all, I'm looking for some good arguments against the claims in the following articles: http://www.ideacenter.org/contentmgr/showdetails.php/id/1507 http://www.weloennig.de/LaryngealNerve.pdf Especially for the mutations issue. Thanks!

What do you think the long term evolutionary response to population control measures would be? I was thinking maybe one type of response would be like the octopi which will hibernate until the babies are hatched and then the mom dies. Or maybe evolutionary regression. Maybe our babies will walk away a few minutes after being born. Or a natural hormone secretion to make babies more desirable. I'm definitely curious about how China is forcing an evolutionary response. I think they did see some effects already which is why they relaxed the law there. That plus a whole lot of bitter single men with no mates. That'll end that in a quick hurry. Maybe it will change sexual behav…

Hello everyone, I was reading the article +29 evidence for macroevolution on talkorigins.org and I've found that a potential falsification of the theory of common ancestor is to find an organism that have some common trait that evolved independently on two different clades.... Some examples would be : a mammal with wings, a bird with mammal glands etc.... Some creationists claim that this is already the case.... And scientists calls it 'convergent evolution'...they give many examples for some placental mammals and marsupial mammals taht they look so much alike more than the other species of the clade where they belong to. A thylacine, for instanc…

Hi all, I know that this question is not directly about evolution but I can't find a better place for it. I would really like to see an example (a photo) of the pebbly beach that Richard Dawkins is talking about in "The Blind Watchmaker" book. In chapter 3 ("Accumulating Small Changes") Richard Dawkins gives an example of a pebbly beach: "If you walk up and down a pebbly beach, you will notice that the pebbles are not arranged at random. The smaller pebbles typically tend to be found in segregated zones running along the length of the beach, the larger ones in different zones or stripes. The pebbles have been sorted, arranged, selected. A tribe living near …

The other day I read that standard HIV tests have window periods that go from 4 weeks to much longer since they check for the antibodies which sometimes take a little bit longer to show up in the blood but a RNA test (which doesn’t look for the antibodies for HIV but for the genetic material of HIV itself and it’s also said that it can find out if someone is HIV positive even if their viral load is only 2 copies/ml) has a window period of only 9-14 days but if a RNA test looks for genetic material of the virus, then why does it require to be taken after 9-14 days of exposure? Is it because the virus takes 9-14 days to actually start multiplying in the blood?

How did homosexuality evolve? It's present in other animals as well.https://en.wikipedia.org/wiki/Homosexual_behavior_in_animals

My question is, could intelligent design be legitimate if it actually did some science? For example, a laptop has the signiture of intelligent design, no one would say that a laptop is the product of natural forces, it quite clearly has an intelligent agent(s) behind it. Surely it is legitimate to ask where the line between natural forces and intelligence is? I don't think intelligence design proponents do any science regarding where this line is, but there must be a limit to natural processes after which something becomes the product of intelligence. I am not an intelligent design proponent, I am just curious. A lot of stuff I read about disparaging intell…

Hey guys, I just need to preface this by saying that I haven't studied evolution in-depth. I just got a little too bored so I read up a little bit on the specific numbers of mutation rates and all of that. In other words, I'm not really educated on evolution. So anyway, I'm trying to figure out mathematically how long it would have taken for us to diverge from our closest relative, the chimpanzee. I've tried working it out for myself, but everything I've come up with shows that it should take way longer than it did. Hear me out. We share 96% of our DNA with chimps, and in there are 6.4 billion base pairs (bp) in the human genome (3.2 billion from each parent). K…