Science/Environment Explaining evolution and natural selection.

[Total Power]

That's the same as arguing the Great Dane & the Chihuahua are 2 distinct species....Their not, merely different breeds.

ROFL , can someone help me out there. You are trolling now. Great den and chi hua hua are both members of canis familiaris, they are the same species lol. Tigers and lions are not the same specie ... FMD

Panthera leo and
Panthera tigris


DIFFERENT SPECIES same genus.... FMD

 

[Procrastinator35]

The liger is a hybrid cross between a male lion (Panthera leo) and a female tiger(Panthera tigris). The liger has parents in the same genus but of different species.

Their all dogs with the same shared ancestry & chromosomal make-up.....The fact they can all still inter-breed is no example of a new unique species....Those are sub-sets of species.

 

[Total Power]

Their all dogs with the same shared ancestry & chromosomal make-up.....The fact they can all still inter-breed is no example of a new unique species....Those are sub-sets of species.

You have ignored everything i have posted and are now clutching the straws, its very hard to have a rational discussion with you. Tigers and lions are of SAME GENUS but DIFFERENT species just like Neanderthals and Homo Sapiens. I am stating it for the 100th time, you CAN INTERBREED if you are under the same genus even if you are a different specie and give birth to fertile offspring, i have given numerous examples above and there are 100s more, but why would i bother if you are going to ignore everything i post and continue with your pseudo science?

 

[Chief]

You have ignored everything i have posted and are now clutching the straws, its very hard to have a rational discussion with you. Tigers and lions are of SAME GENUS but DIFFERENT species just like Neanderthals and Homo Sapiens. I am stating it for the 100th time, you CAN INTERBREED if you are under the same genus even if you are a different specie and give birth to fertile offspring, i have given numerous examples above and there are 100s more, but why would i bother if you are going to ignore everything i post and continue with your pseudo science?

And later he will complain that nobody takes him seriously.


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[Procrastinator35]

And later he will complain that nobody takes him seriously.

Sent from my iPhone using BigFooty.com

Weren't you railing against cheer-leading in another thread?

 

[Total Power]

Seriously mate, you got to know when to give up, Great Dane and Chihuahua are different breeds under the same specie, tigers and lions ARE NOT. You are confused cause you dont know what makes a "specie". Tigers and lions are under the same genus but DIFFERENT specie, unlike great dane and chihuahua, they are the SAME SPECIE. For the love of god

 

[Chief]

Weren't you railing against cheer-leading in another thread?

What are you talking about? Seriously - you seem to think that posting "no it's not" over and over again is some sort of erudite contribution to the conversation.

It is just attention seeking.

I see your name on a post and my eyes glaze over.


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[Procrastinator35]

What are you talking about? Seriously - you seem to think that posting "no it's not" over and over again is some sort of erudite contribution to the conversation.

It is just attention seeking.

I see your name on a post and my eyes glaze over.

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So nothing to add to the topic then?....Just personal commentary.

 

[Chief]

So nothing to add to the topic then?....Just personal commentary.

*head explodes*


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[Procrastinator35]

You have ignored everything i have posted and are now clutching the straws, its very hard to have a rational discussion with you. Tigers and lions are of SAME GENUS but DIFFERENT species just like Neanderthals and Homo Sapiens. I am stating it for the 100th time, you CAN INTERBREED if you are under the same genus even if you are a different specie and give birth to fertile offspring, i have given numerous examples above and there are 100s more, but why would i bother if you are going to ignore everything i post and continue with your pseudo science?

It would seem Linnaeus classification system agrees with you.

 

[Total Power]

It would seem Linnaeus classification system agrees with you.

You seem to ignore my point that to interbreed the first requirement is same "genus". This doesnt mean same "specie". You are confused between "genus" and "specie". Your statement that 2 different species cant interbreed and produce a fertile offspring is false, i have proven it with numerous examples here, but if you are going to disagree by force, you can carry on with your pseudo science.

 

[Procrastinator35]

You seem to ignore my point that to interbreed the first requirement is same "genus". This doesnt mean same "specie". You are confused between "genus" and "specie". Your statement that 2 different species cant interbreed and produce a fertile offspring is false, i have proven it with numerous examples here, but if you are going to disagree by force, you can carry on with your pseudo science.

You've said that already....I've conceded the point.

My category confusion lay in nomenclature.

 

[Total Power]

You've said that already....I've conceded the point.

My category confusion lay in nomenclature.

Look i dont think evolution answers all the questions, we still have lots of open questions and we need to find answers to that, but its still the best we have. I was reading the alien hypothesis and the Anunaki is very interesting. Alien cave paintings can be found amongst Aboriginal australians and also in south america. There are some other compelling evidence too, i am not saying this is what happened, but one hypothesis that is stronger than "god did it" one.

 

[Procrastinator35]

Look i dont think evolution answers all the questions, we still have lots of open questions and we need to find answers to that, but its still the best we have. I was reading the alien hypothesis and the Anunaki is very interesting. Alien cave paintings can be found among Aboriginal australians and also in south america. There are some other compelling evidence too, i am not saying this is what happened, but one hypothesis that is stronger than "god did it" one.

Relax TP.....I've always stipulated it's our best scientific guess to date.

There's still the question over increased encephalization, between hominid species....What we nowadays refer to as 'The missing link'.

 

[M Malice]

Look i dont think evolution answers all the questions, we still have lots of open questions and we need to find answers to that, but its still the best we have. I was reading the alien hypothesis and the Anunaki is very interesting. Alien cave paintings can be found amongst Aboriginal australians and also in south america. There are some other compelling evidence too, i am not saying this is what happened, but one hypothesis that is stronger than "god did it" one.

agree, i would find it easier to believe that the earth was seeded by an advanced alien race than the omnipresent overlord creator "theory".

 

[Total Power]

Relax TP.....I've always stipulated it's our best scientific guess to date.

There's still the question over increased encephalization, between hominid species....What we nowadays refer to as 'The missing link'.

What do you mean by GUESSING?

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[Procrastinator35]

What do you mean by GUESSING?

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https://en.wikipedia.org/wiki/Human_evolution

Encephalization[edit]

Brain size and tooth size in hominins.

The human species developed a much larger brain than that of other primates—typically 1,330 cm3 in modern humans, over twice the size of that of a chimpanzee or gorilla.[71] The pattern of encephalization started with Homo habilis,[72] which at approximately 600 cm3 had a brain slightly larger than that of chimpanzees, and continued with Homo erectus (800–1,100 cm3), reaching a maximum in Neanderthals with an average size of (1,200–1,900 cm3), larger even than Homo sapiens. The pattern of human postnatal brain growth differs from that of other apes (heterochrony) and allows for extended periods of social learning and language acquisition in juvenile humans. However, the differences between the structure of human brains and those of other apes may be even more significant than differences in size.[73][74][75][76]

The increase in volume over time has affected areas within the brain unequally—the temporal lobes, which contain centers for language processing, have increased disproportionately, and seems to favor a belief that there was evolution after leaving Africa, as has the prefrontal cortex which has been related to complex decision-making and moderating social behavior.[71] Encephalization has been tied to an increasing emphasis on meat in the diet,[77][78][79] or with the development of cooking,[80] and it has been proposed that intelligence increased as a response to an increased necessity for solving social problems as human society became more complex.[81] The human brain was able to expand because of the changes in the morphology of smaller mandibles and mandible muscle attachments to the skull into allowing more room for the brain to grow.[82]

The increase in volume of the neocortex also included a rapid increase in size of the cerebellum. Traditionally the cerebellum has been associated with a paleocerebellum and archicerebellum as well as a neocerebellum. Its function has also traditionally been associated with balance, fine motor control but more recently speech and cognition. The great apes including humans and its antecessors had a more pronounced development of the cerebellum relative to the neocortex than other primates. It has been suggested that because of its function of sensory-motor control and assisting in learning complex muscular action sequences, the cerebellum may have underpinned the evolution of human's technological adaptations including the preadaptation of speech.[83][84][85][86]

The reason for this encephalization is difficult to discern, as the major changes from Homo erectus to Homo heidelbergensis were not associated with major changes in technology. It has been suggested that the changes have been associated with social changes, increased empathic abilities[87][88] and increases in size of social groupings[89][90][91]


All guess-work T.P

 

[Total Power]

All guess-work T.P

I dont think you understand the difference between "not knowing how it happened" but knowing it has happened. We dont understand how gravity works either, other than "its a force", but that doesnt mean gravity is false. Evolution is no guess work, evolution has been confirmed by independent streams of studies from microbiology, genetics, geology etc etc. I dont think carrying on with you will be of any benefit cause you have made up your mind. You can also OBSERVE evolution! but yeah sure whatever you say champ.

 

[Total Power]

DNA/Genetics evidence (outside of fossil records), but this means nothing, pure guesswork

http://humanorigins.si.edu/evidence/genetics

DNA also shows that our species and chimpanzees diverged from a common ancestor species that lived between 8 and 6 million years ago. The last common ancestor of monkeys and apes lived about 25 million years ago.

 

[Pie eyed]

You asked for different species, i gave you examples of that, here from wiki

"Wolves (canis lupus), coyotes (canis latrans), and domestic dogs (canis familiaris) are closely-related but different species"






That is what i am telling you, you can interbreed if you are under the same "genus" like Neanderthals and humans.

Next you will say lions and tigers are same species as well, a liger is a fully fertile hybrid offspring.

No point discussing with him, he has no clue and simply dredges the net for whatever comes up first and seems relevant enough to make it appear he has.

 

[Procrastinator35]

I don't think you understand the difference between "not knowing how it happened" but knowing it has happened. We don't understand how gravity works either, other than "its a force", but that doesn't mean gravity is false. Evolution is no guess work, evolution has been confirmed by independent streams of studies from microbiology, genetics, geology etc etc. I don't think carrying on with you will be of any benefit cause you have made up your mind. You can also OBSERVE evolution! but yeah sure whatever you say champ.

Dear Oh....You've Spat the dummy big time.

The human cranium, brain, frontal cortex & Cerebellum are unique....A big reason for what separates us from the animals....And you want to waive all that away as nothing?

 

[Total Power]

Dear Oh....You've Spat the dummy big time.

The human cranium, brain, frontal cortex & Cerebellum are unique....A big reason for what separates us from the animals....And you want to waive all that away as nothing?

Maybe because they are different species? homo sapiens are NOT homo neaderthalis, but under the same genus,, you realise that?

Neanderthals simply didn't grow socially the way humans did, which indicates that different parts of their brains developed--those more focused on individual survival. H.N werent very social! this explain why their brain was the way it was.

http://www.tested.com/science/life/...erthal-brains-didnt-make-them-smarter-humans/

 

[Procrastinator35]

Maybe because they are different species? homo sapiens are NOT homo neaderthalis, but under the same genus,, you realise that?

Neanderthals simply didn't grow socially the way humans did, which indicates that different parts of their brains developed--those more focused on individual survival. H.N werent very social! this explain why their brain was the way it was.

http://www.tested.com/science/life/...erthal-brains-didnt-make-them-smarter-humans/

Well yes, other animals have larger brains than us too....But how does our diet or social habits cause the significant change in encephalitic morphology?

 

[Total Power]

Well yes, other animals have larger brains than us too....But how does our diet or social habits cause the significant change in encephalitic morphology?

http://www.smithsonianmag.com/scien...why-youre-smarter-than-a-neanderthal-1885827/

The researchers speculate that this could be because they evolved exclusively in Europe, which is of higher latitude (and thus has poorer light conditions) than Africa, where H. sapiens evolved.
After correcting for these differences, the research team found that the amount of brain volume left over for other tasks—in other words, the mental capacity not devoted to seeing the world or moving the body—was significantly smaller for Neanderthals than for ancient H. sapiens. Although the average raw brain volumes of the two groups studied were practically identical (1473.84 cubic centimeters for humans versus 1473.46 for Neanderthals), the average “corrected” Neanderthal brain volume was just 1133.98 cubic centimeters, compared to 1332.41 for the humans.

 

[Total Power]

More:
This divergence in mental capacity for higher cognition and social networking, the researcher argue, could have led to the wildly different fates of H. sapiens and Neanderthals. “Having less brain available to manage the social world has profound implications for the Neanderthals’ ability to maintain extended trading networks,” Robin Dunbar, one of the co-authors, said in a press statement. “ are likely also to have resulted in less well developed material culture—which, between them, may have left them more exposed than modern humans when facing the ecological challenges of the Ice Ages.”






Read more: http://www.smithsonianmag.com/scien...an-a-neanderthal-1885827/#DRGPhMFWEtKHzBJO.99
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The point you are missing is bigger doesnt mean better.
Apart from the offspring of a small number of rare interbreeding events, though, the Neanderthals did die out. Their brains might have been just as big as ours, but ours might have been better at a few key tasks–those involved in building social bonds in particular—allowing us to survive the most recent glacial period while the Neanderthals expired.