Jump to content

StrontiDog

Senior Members
  • Content Count

    90
  • Joined

  • Last visited

Community Reputation

55 Good

About StrontiDog

  • Rank
    Meson
  • Birthday 06/03/1960

Profile Information

  • Location
    Knoxville, TN
  • Interests
    Bad drummer in crappy band. . .and loving it!
  • College Major/Degree
    Degrees in Biology and Nuclear Physics
  • Favorite Area of Science
    Physics and Biology
  • Occupation
    Health Physicist at the Oak Ridge National Laboratory
  1. If anybody can't see the evolutionary advantage of a species with an overwhelmingly-strong sex drive, then they would seem oblivious to some of the basic evolutionary tenants. Only humans even 'know' that mating is what produces offspring. Any other population mates due to their biological imperative to do so.
  2. (From one perspective): ". . . . .I'm just meeting you because I'm willing to do what it takes to try and get into your bloomers." (From another perspective): ". . .I'm just doing this because I've got two kids, you've got a good job and a nice, roomy flat and I am willing to do what it takes to get into your wallet and bank account." Honesty is overrated. The advice I'd give is go ahead and tell the truth, but never tell the whole truth.
  3. In a way, the picture to which you are referring has nothing to do with Darwin. Lest we forget, that was a 1965 illustration by a rather well-known artist named Rudolph Zallinger. It was commissioned by Time-Life Books as a fold-out for one of their Life Nature Library books. The original has 15 renderings representing the artist’s conception of what was. . .50 years ago. . .the latest and most up-to-date overview of evolutionary developments. There has been criticism from the beginning for the first three images . Zallinger was an accomplished natural history painter, and he drew w
  4. There is some logic to the descriptor of trial and error. There is evidence of numerous 'failed' attempts at everything from vision to flight. Though calling that an 'error' is potentially erroneous. Perhaps the most efficient, most effective mode of flight was developed by a beast on some island that was wiped-out by a volcanic eruption. . .and we'll never even know what it was. The implication of a conscious effort is probably a mistake, as well. Wide genetic variation within a population is an observed phenomenon. If some combinations work under certain circumstances. . .and are p
  5. Try this argument, navig8tr. . . . . Start by asking if they even know what DNA is, because it is not a code. It is more like a template or even a stencil for protein synthesis. Call it 'Science's Mistake' (The average Creationist will like that line. . .) that we ever even coined the term 'Genetic Code.' It is a misnomer that refers more to sequencing order, than anything else. And lightning bug flashes have a sequence. . .but that's not a code created by a mind, now is it? If the stencil is damaged, the cell might still make protiens but they will be the wrong ones and will
  6. In partial answer to the first question, I found an interesting TIME article with the following: Up to 10 million tons of chemical fertilizer per year are poured onto fields to cultivate corn alone, for example, which has increased yields 23% from 1990 to 2009 but has led to toxic runoffs that are poisoning the beleaguered Gulf of Mexico. Beef raised in industrial conditions are dosed with antibiotics and growth-boosting hormones, leaving chemical residues in meat and milk. A multicenter study released just two days after the obesity report showed that American girls as young
  7. Bellabob, The basic answer to your question is that two organisms, both fully functional on their own, were more apt to survive and breed more offspring when their mutually beneficial traits were present, than when they were not. Both organisms then evolved to the point where they were fully dependent on each other. The other answer is that symbiosis is a general term. Some organisms seem to get along just fine without their symbiote, some die without them. Our own mitochondria are descendant from a bacteria that entered early eukaryotic cells (likely either as an invader. . .or as
  8. I would posit that imagination has definite and quantifiable survival value. As a species, humans are really quite imaginative. We see imagination at work in children from the time they can communicate in any but the most basic ways. It seems intrinsic to the species. It also seems to be a true Gaussian distribution pattern within us. Some have a lot, some not so much. . .and most of us somewhere in the middle. Imagination works to better anything from hunting tactics to making fire to more efficient tools and weapons. I am also not sure that we can truly control our ability
  9. From an evolutionary perspective, I propose that lifespan and breeding rates would be one factor for selection of longer-lived individuals in any population. Consider rats that would routinely live in excess of a hundred years (like some sea turtles). Now consider their breeding rates. Malthus wasn't wrong, he just didn't anticipate all the variables. Perhaps such species have existed. What are the odds they'd still be around, today?. One true drought, worldwide ice age, volcanic winter, etc., could wipe-out such a species even if the regular overpopulation/95% wipe-out cycle
  10. Okay DieDaily, I've spent most of the day reading and re-reading this entire thread, and I don't think that anyone has addressed these questions quite this way. I don’t see any paradox, CM is not violated, and what you see looking out the side window does not describe the effects of gravity. Addressing the last first, light has to bridge the distance between the objects (ships.) Gravity doesn't, it's already in place. Light is emitted or reflected, there is a gap between photons. That gap gets wider as they leave the point source. (Which is where the concept of 'gravitons' breaks-d
  11. Makes sense for most things. I don't see environment making much difference in (innate) eye color, and a few other things. But as a rule of thumb, it works. Thanks, Bill Wolfe
  12. Not really, Steevey. Intelligence has been fairly well demonstrated to be a Continuous Genetic Trait. In short, it is inherited (though there is a fair amount of disagreement as to how much) but it is also affected by environmental factors. Let's face it, if Einstein's mother was an alcoholic when he was in-utero, we'd have probably never heard about him. Intelligence is a little like height. An offspring can be taller than both parents, or shorter, or somewhere in between. But other factors such as prenatal care, toxins in the environment and diet can make a big difference in h
  13. Something to keep in mind is the common misconception that a species slowly turns into another species. Lest we forget, humanity split from a common ancestor with chimps, gorillas and other great apes somewhere around 10-20 MYA. This means that that one common ancestor species 'evolved' into at least three species that still exist, and countless others that don't. So what does that species 'look like', now? Shoot, if you go back 200 MYA or so, we may share a common ancestor with any other vertebrate. So what did that species 'evolve into?' Did it evolve into humans, or spe
  14. Why would there even be a gravitational wave unless the spinning object was highly lopsided or had a very dense, off-center volume within it? If it managed to create gravitational waves, they would propagate at the speed of light. No more, no less. Higher spin rates would probably increase the frequency of the gravitational waves, but it wouldn't affect their speed. If gravitational waves exist at all, that is. Last I heard they haven't actually been detected to any degree of certainty, though there have been some interesting possibilities dating back to 1987. Bill Wolfe
  15. Actually, not true. A horse has 64 chromosomes and a Donkey has 62. They can mate and produce a hybrid. . .a mule. Mules have 63 chromosomes. It’s the odd number of chromosomes that makes most mules sterile. There are well documented (but rare) cases of female mules (mollies) giving birth to foals. Genetic testing has even confirmed that the molly was the mom. So the offspring aren’t necessarily sterile. Besides, who says the character can’t be a sterile hybrid? As for the mechanism behind the character’s unique parentage. . .a mislabeled vial in an in vitro fertilization cl
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.