Evolution, Morphology and Exobiology

Hello, I was searching something about DNA and I found this good article. Over a century ago, the Cheddar man was unearthed in Gough's cave in Somerset. Back then researchers didn't have the technology to determine the eye and skin colour of the man but with the advancements in genetic research they found out he was dark skinned with blue eyes. Check the link above if you're interested

I'm wondering about the advantages and disadvantages of genetic enhancements like making a designer baby. these types of things really interest me so please help. I'm also talking about animals and plants being altered genetically. thanks.

Here's an article which explores the cocktail of unusual human traits that we have acquired of millions of years since evolving from the blueprints of primitive apes. url deleted by moderator Can you think of any additional examples?

I've been building a platform that uses genetic algorithms to build simulated nervous systems. Here are some videos describing this system. Feedback welcome Episode 3: Episode 2: Episode 1: LinkedIn Article: Links deleted

While the idea of a super Earth has been discussed many times many people assume that a super habitable planet is pretty much the same thing and while they might overlap to some extent they are differing concepts. A super habitable planet poses the idea that a planet could very well be better than Earth in several ways to support life. An example would be a planet orbiting a K type star, twice as massive as Earth and around 1.2 to 1.5 times the Earth's diameter. If it lied close to the middle or outer edge of it's stars habitable zone such a planet could maintain habitability for as long as 30 billion years. A denser atmosphere, more greenhouse gases, a stronger ma…

Why do many people make a distinction between abiogenesis and evolution? The process that led to the forming of life is subject to survival of the fittest trough natural selection just like the Darwinian evolution of life. For example: -The energy of photons (light) can work as catalyst to form organic matter but the formed matter must be fit enough not to break apart due to the photon energy. You might call this survival of the fittest molecules. -In the Miller Urey, the applied energy forms amino acids but also limits the size since the formed amino acids have to be resistent (or be fit enough)not to break apart because of the applied energy.

According to the most generous interpretations of the fossil record, the longest possible time frame for the theorized evolution of a land dwelling animal into a whale is 9 million years. Now, transforming a four legged terrestrial mammal the size of a wolf or sheep, into a fully aquatic mammal like a whale requires many new genes to be formed. For a demonstration let us compare the two structurally highly similar organisms - human and chimp. http://journals.plos.org/plosgenetics/article?id=10.1371/journal.pgen.1002379 This study identified 60 new protein-coding genes that originated de novo on the human lineage since divergence from the chimpanzee. The function…

I'm transgender but I'm into science and there is no proof of this. So it really upsets me personally. What are your thoughts?

While I wouldn’t disagree that gender is (partly) a construct I don’t think that means it isn’t real. Language, money, ethics and art are all social constructs and are real (depends ng on the definition for f “real”).

I first had read the Books from Richard Dawkins like "The Selfish gene"... Now I am reading the Book: "Developmental Plasticity and Evolution" from Mary Jane West-Eberhard... At how much percent % predetermine us our Genes and in how much percent % determines us the Enviroment???... Have we some evidence from a trait that can be influenced from both und do we know the underlaying biochemical pathway???... Which is the key factor on an Organism???... The Genotype or the Phenotype???...

I mean people. Can it be done? We can breed our offspring for genetic qualities and one of these is presumably smallness . How small can we go before intelligence is sacrificed? If we can go very small can we go small enough that travel at relativistic speed becomes possible ? If we are very small then resources become very much of a non existent problem and if we can travel at relativistic speeds the only problem would be maintaining contact with those we have left behind (we are well used to this dilemma as it is only over the past couple of centuries that emigration has ceased to become something of a one way ticket in this resp…

I am not a professional in this field so please bear with my ignorance. I try to be science literate where ever I can. My question is: Do genetics broadly and haplogroups more specifically rule out humans descending from more than one gene pool of common ancestors? To put it another way: Could it be possible that there was more than one beginning of Homo Sapiens than a single population in Africa 200-300K years ago? Thanks.

What evolutionary advantage does sodomy give to animals which choose to engage in this activity?

I lurked in this and other forums for some time before participating. I noticed, on several occassions, posters making the claim that microevolution and macroevolution Were meaningless terms Were avoided by professional biologists Were introduced by creationists to enable them to explain away observed adaptation, but reject evolution of species I view each of these positions as flawed (seriously flawed), but wonder if any members incline to agree with any or all of them, and if so, why?

Do any modern day homo sapiens carry a neanderthal y-chromosome or mitochondrial DNA today?

Hypothetically if you marry your cousin's daughter to your son, are the chances of them procreating to produce offspring with genetic disorders/birth defects relatively small? Should it be a concern at all? Is it just when first cousins marry which are a problem for healthy offspring production or are 2nd/3rd cousin marriages a problem as well if they want to produce children one day?

So comparing human evolution to other primates like monkeys and apes what would be the best candidate for building a civilazation. Humans would be out of the picture i was thinking capuchins. Since the already use specific rocks for tools and have a complex method of breaking open nuts. what if they started farming the nuts also they have a flatter face so I would think that would allow them to evolve a bigger brain

im a layman so please feel free to correct me here, but simply. but i am under the impression that the 'missing piece' in the theory of evolution is a transition from simple amino acids, to dna. is that right? so we have the miller-urey experiment in 1952 showing where amino acids came from. then once the first life sprang up, we can show it evolving. but it seems to me we cant show where dna came from. we can only hypothesise. so i wonder, are there scientists now frantically trying to show how dna could have come about? are there "miller-urey" experiments going on, but for dna? and i dont mean computer modelling, i mean actual real experiments. if …

I read somewhere that dopamine serotonin etc just existed in the universe. But what's your concept behind the first beginning of receptors being formed. And why do they have a certain effect

Okay, so this is going to seem like a really odd post, and quite frankly I'm very depressed that I even need to make it, but there it is. So shortly after the movie 'Life' came out a few months ago, I had come across one of the scenes posted on YouTube. Specifically the scene where the alien, despite being completely boneless and seemingly only being about the size and thickness of a typical latex glove, only around 30 or 40 grams at most, manages to force a man's clenched fist open and proceed to essentially pulverize his hand. I had made what I thought would be a 'do duh!' remark in the comments section in the effect of enjoying how creepy the scene was but there's simp…

https://phys.org/news/2017-10-evidence-life-earth-meteorites-splashed.html Evidence suggests life on Earth started after meteorites splashed into warm little ponds October 2, 2017 Life on Earth began somewhere between 3.7 and 4.5 billion years ago, after meteorites splashed down and leached essential elements into warm little ponds, say scientists at McMaster University and the Max Planck Institute in Germany. Their calculations suggest that wet and dry cycles bonded basic molecular building blocks in the ponds' nutrient-rich broth into self-replicating RNA molecules that constituted the first genetic code for life on the planet. The researchers base t…

i stumbled across the whole lenski this and think its great that someone had the foresight to do something like this. however i do wonder, after 50000 generations, has anythingt happened of any significance? i mean, if evolution is a fact/true, why are the ecoli still ecoli? why havnt they evolved to something else of any real difference? dont get me wrong, i think evolution makes a lot more sense than creation, but it doesnt help the evolution case if those ecoli always stay as ecoli, and never evolve to anything else.

I'm not a biologist, so this is unfamiliar territory. He has challenged me thus, and I'm unsure how to respond cite me one study that shows a mutation that produces an increase in the genetic information of the organism.

Hi everyone, I've read a paper (open-access link below) about evolution and development in ratite wings. It compares the rates of development during embryo ontogeny of wing in ostrich and emu (wich is known that developed their flightlessness independently) and compares it to normal wing development in flighted birds. As the rates are quite normal for a flighted bird in ostrich, wing proportions ain relation to the body are only slightly below the normal and the ostrich has a very massive body, it concludes that it is due to general peramorphosis of the body. On the other hand, emu wing growth rates are very, very slow and wing/body proportions are far below normal, …

Hello, I am not a native speaker and I am currently working on a book about Genesis (before the "Flood") as I have understood it refers to the african Matriarchy that preceded civilisation. In short, each text before the flood has several analogic meanings. The seven "Days" are seven "faces of light" (1.5 God named the light : "Day") and not a week... and one meaning of the seven Days is the growth of a human being, from conception to adulthood : 1.1-3 "In the beginning, God created the (heavens) respiration, inspirations... and the (earth, Adama in Hebrew) flesh. The flesh had been empty and void, before the conception. Darkness was covering the amniotic abyss…