Quote:
Originally Posted by Dr. Egon Spengler
Migration causes evolution, which is why you see animals very similar, but of a different species. For example, the camel was originally a North American animal. During the last ice age, part of the species migrated over to Asia, remaining the same, considering that both North America and Asia are in the Northern Hemisphere. However, another part of the species migrated to South America, a different hemisphere and climate, and became the llama.
But migration isn't the only thing that can cause evolution. The factors I named previously are just as powerful evolutionary forces, and have just as much weight in how an organism evolves.
Quote:
Well, if that's the case, do you see birds running the show? Across billions of years, their brains haven't gotten sophisticated enough to produce highly intelligent beings. Thank you for proving my point.
Their brains evolved differently, and they focused on flight over intelligence. It's all about balance. They didn't need overwhelming intelligence to survive, so they never evolved it. Primates, without the wonderful ability to fly, did need intelligence, and thus they evolved that particular advantage from an already increased brain size. Both end results(flight and intelligence) are products of organisms evolving specialized features based on what advantages they started with.
Quote:
Collect a group of animals; birds, dogs, cats, various fish, deer; whatever you like, and create a controlled environment. And then throw a couple of humans in there and see what happens.
I'm sure if I put you(or even ten of you) into an environment full of wild dogs, big cats, sharks, and 12-point stags, you'd survive just fine right? Even with all your intelligence, you'd be fish food in a matter of hours, if not minutes. And don't say you'd bring a gun. Humans didn't just start out with guns in their hands. You start out with your own naked self and your almighty intelligence, nothing else, just like your ancestors. Intelligence does not prove itself to be dominant just by be being intelligence.
Quote:
I agree with you there. Life can exist without the exact same circumstances as on earth, such as plants developing to turn CO2 into oxygen. But plants aren't intelligent, are they?
Plants being intelligent or not has nothing at all to do with their method of respiration. Oranges and apples.
Quote:
In direct proportion from the earth to the sun? If our sun was any bigger, we'd be dead. There's also radiation that the sun emits. A bigger sun would emit more radiation, which means that the planet's magnetic field would need to be larger, which means that it's core needs to be larger and spinning faster, which would make the planet a magnet for any iron-based meteors, and one would eventually crash into the planet, and everything would die. No life there. Take the planet Mercury, for example. It has the most dense iron core in our solar system. Do you realize how many times that planet gets struck by meteors? If it was in the position that the earth is in, it would be getting hit even more, due to weaker gravity further away from the sun.
Yes, it does. The moon serves as a device that holds the magnetic field in place. The further away it moves, the less of a magnetic field we have. In a few billion years, when the moon is out of reach, there will be nothing left on earth. You should take some of those lectures about the moon. Very interesting.
You seem to have completely missed what I was saying. You don't need a sun exactly our size, or an orbital distance exactly that of Earth. All you need is the same proportion. Larger sun = larger orbital distance required; smaller sun = less orbital distance required. And please don't get started on the magnetic field stuff here, too. You have already shown quite clearly that you have a very weak understanding of magnetic field theory and all of the points you made about the effects of a magnetic field in this paragraph are way off base with zero science behind them. A larger planet would not have a faster spinning core, a larger iron core would not create a larger magnetic field, a larger magnetic field would not attract more asteroids, a larger sun would not require a larger magnetic field, and the moon has no effect on our magnetic field, no matter how many times you try to say it. If you want to spout that nonsense again, provide a link to an accepted scientific article supporting it.
Quote:
I'm merely suggesting theories, because you people keep asking me questions. If you don't like them, then make your own theories. My point is this, if you go back in time and stop humans from migrating, what will happen? They would have stayed in a desert, and wouldn't have gained intelligence. The reason being that they would constantly be on the move in search of water. When they migrated, the learned to cultivate land and live off of that land for years before moving on. You not only need a sophisticated brain in order to be an intelligent being, you need to learn as well.
You see, you're not "merely" suggesting anything. You're stating as a fact your ideas, and not listening to us when we try to correct you. And desert? Africa was no desert a few million years ago, and mostly still isn't today. Our ancestors came from a verdant plain environment full of flora and fauna of all kinds, with easy access to water and food. And they were already possessed of fully-evolved, modern-day-level brains at that point. I hate to say it, but your migration theory falls apart under the proof that our brain hasn't actually significantly evolved since we started migration around 200,000 years ago. According to the Out of Africa theory(the most common theory about human migration), we were already fully evolved into the forms we have today, both physically and mentally, by the time we started migrating to the rest of the world. So you could say that the migration was a result of the intelligence, not the other way around.
Quote:
On the contrary, across the billions of years (remember, we're speaking of the development of the brain in general, not just of the human brain,) the primate brain has grown the same. Gorillas, the closest relative that humans have, have nearly the exact same brain as us, and they are unbelievably smart. Some have been taught sign language, others have been taught to write. There was a gorilla in the 1970s who actually learned to speak. For words, but she still spoke. It's not that humans are smarter, it's that humans utilize more of their brain then the average gorilla uses. That's what makes a being intelligent.
I agree with Fluffy. Don't use billions of years. A billion years ago there was no brain or even multicellular life. The entire evolution of the nervous system from the ground up has taken place in the last 500 million years or so, and primates haven't even been around for 100 million years. And other primates do NOT have the capacity for thought that we do. You can only teach a lesser primate so much, and even then it's mostly mimicry and basic "do this to get this" level thinking. It's not just a matter of "wanting" to be smart or using more of the same organ. There's a biological difference between our brains and other primates. It's not just a matter of us using parts that the other primates don't use. We're using structures that the other primates don't even have, or don't have as complex a version of. This is a difference that could easily change over millions of years if allowed, but it is a definite difference.
Quote:
And, just for the record, I've already stated my reason as to why an alien life form possessing intelligence is impossible, because you need a brain. Life that starts 20 light years away from earth wouldn't be able to develop exactly the same, and therefore, it may produce brainless organisms, such as a being resembling bacteria or average plant life.
Yes, you've stated that "reason" numerous times, and we've been trying to get you to explain it from the beginning, because it doesn't have anything to back up, and you haven't stated a single solitary fact supporting it yet. You need to tell us why the intelligent brain could never evolve again anywhere under any circumstance and you need to use facts to support your reasons.
Quote:
Originally Posted by Sasquatch
Statistically, Evolutionism is all but impossible. Factor in the idea that life was magically created from no life, and the idea that single-celled organisms magically became multi-celled organisms, and the word "impossible" is pretty damn accurate.
If you're going to bring statistical probability into the mix, you're going to need to bring in some figures to back up your statements. Like I said before, when you expand the playing field onto the entire universe, statements like "1 in a million" or 1 in a billion" or even "1 in a trillion" lose their everyday meaning of "impossible" and are basically guaranteed events. The sheer size of the universe renders statistical arguments like yours moot. Of course, if the tone of your statement is implying that you don't believe in evolution at all, I think you're in the wrong thread. :)
(and I'm still waiting on the origin of the Magus Sister's names, Sasquatch. If you just don't know where they came from and were trying to stump everyone with an unanswerable question, just say so and I'll leave you alone about it. :P)