Do you believe in evolution ?

[Mournblade]

if i remember right there was something about moths in the last 40- 30 years or so going from whitish to blackish and now going back to whitish because of pollution

 

[ubersonic]

No decent argument can arise from someone who uses txt speak in the title.

lol ikr?

The language your referring to is actually called Netspeak, it was developed by users of the internet to save time when instant messaging and communicating via discussion forums

Txtspk is just a name the media banded around when people started using it on mobile phones too.

 

[ubersonic]

Hang on, unless I've misunderstood evolution all my life, the whole point is that yes, one day a monkeys tail did fall off (i.e. it was born without one) and so it had an advantage and survived to reproduce. It's cells didn't think "ah, you'd be better without a tail" and slowly got rid of it!

The is a type of cat somewhere in the world that was being hunted for their tails so the mothers started chewing them off the cubs after birth to make them undesirable to the hunters, eventually they started being born without tails. Was a cool documentary on it.

 

[Hagar]

The is a type of cat somewhere in the world that was being hunted for their tails so the mothers started chewing them off the cubs after birth to make them undesirable to the hunters, eventually they started being born without tails. Was a cool documentary on it.

I don't believe that one, sorry.

 

[arknor]

I don't believe that one, sorry.

so many animals could have just chewed the fur from cubs and never been extinct, you'd think elephants and rhinos would be tusk-less too

 

[Hagar]

Removal of a part of an animal after conception will have no effect on the gene structure, it does not become a cat with genetic predisposition to have no tail, just a cat with a tail who has lost it.

Manx cats tend to be genetically tail less I think.

 

[TheLegendOfMart]

so many animals could have just chewed the fur from cubs and never been extinct, you'd think elephants and rhinos would be tusk-less too

Are you trolling or are you for real?

 

[arknor]

Are you trolling or are you for real?

but cats are legit? oh nice ninja edit there as soon as you realised I was replying to the cat post.......... why you remove the talk of people only hunting for ivory for a few hundred years? because it doesn't fit evolution if the cat does?

The is a type of cat somewhere in the world that was being hunted for their tails so the mothers started chewing them off the cubs after birth to make them undesirable to the hunters, eventually they started being born without tails. Was a cool documentary on it.

 

[m4rk84]

so many animals could have just chewed the fur from cubs and never been extinct, you'd think elephants and rhinos would be tusk-less too

Elephants and Rhinos are the product of evolution over massive time-scales, we are talking 50-60+ million years here. By comparison we have only been hunting these animals on large scales just for their tusks and horns for the past few hundred years at most. Evolution doesn't just suddenly cherry pick tusks and horns as their problem trait and dispose of them overnight. We are hunting these animals to extinction much much faster then evolution can possibly work.

Honestly though these concepts of time-scales and the mechanics of evolution have been explained to you countless times in this thread and you seem no closer to even beginning to understand what we are talking about, so it feels like a waste of time even trying.

 

[arknor]

I just seriously doubt some stories people come up with and claim it's evolution like cats losing their tails because humans want them?

how is the cat supposed to know humans want the tails? surely they do something with the rest of the cat too like skin the whole thing to make a racoon style hat.

I can believe in small changes like cats in the Himalayas growing stupidly massive fur because of the cold.

convincing me something started to grow legs and lungs instead of gills on the other hand.... is there actual fossil evidence showing a species slowly evolving in a major way? or is it all just speculation until we have a greater understanding

 

[m4rk84]

I just seriously doubt some stories people come up with and claim it's evolution like cats losing their tails because humans want them?

how is the cat supposed to know humans want the tails? surely they do something with the rest of the cat too like skin the whole thing to make a racoon style hat.

I can believe in small changes like cats in the Himalayas growing stupidly massive fur because of the cold.

convincing me something started to grow legs and lungs instead of gills on the other hand.... is there actual fossil evidence showing a species slowly evolving in a major way? or is it all just speculation until we have a greater understanding

It's absolutely not speculation at all. There is countless evidence of transitions everywhere, you are just refusing to absorb the information you are being presented. Deliberately acting ignorant. In the last few pages alone there have been countless explanations.

I suggest going back and actually reading, go search the internet for the evidence of the transitions you are curious about you will find heaps of physical evidence everywhere. On the previous page there is good information about the complex formation of the bones in our ear, which originally were located in our reptilian ancestors jaw. The transitions are well documented and there are examples of the movement of these bones over many species from the jaw to the ear.

 

[MikeTheNative]

It's absolutely not speculation at all. There is countless evidence of transitions everywhere, you are just refusing to absorb the information you are being presented. Deliberately acting ignorant. In the last few pages alone there have been countless explanations.

I suggest going back and actually reading, go search the internet for the evidence of the transitions you are curious about you will find heaps of physical evidence everywhere. On the previous page there is good information about the complex formation of the bones in our ear, which originally were located in our reptilian ancestors jaw. The transitions are well documented and there are examples of the movement of these bones over many species from the jaw to the ear.

He just needs to go to wikipedia.

 

[LOAM]

convincing me something started to grow legs and lungs instead of gills on the other hand.... is there actual fossil evidence showing a species slowly evolving in a major way? or is it all just speculation until we have a greater understanding

You even need a fossil, just go and look up a lungfish.

Perfusion of water
Of extant lungfish, only the Australian lungfish can respire through its gills. In other species, the gills are too atrophied to allow for adequate gas exchange. When a lungfish is obtaining oxygen from its gills, its circulatory system is configured similarly to the common fish. The spiral valve of the conus arteriosus is open, the bypass arterioles of the third and fourth gill arches (which do not actually have gills) are shut, the second, fifth and sixth gill arch arterioles are open, the ductus arteriosus branching off the sixth arteriole is open, and the pulmonary arteries are closed. As the water passes through the gills, the lungfish uses a buccal pump. Flow through the mouth and gills is unidirectional. Blood flow through the secondary lamellae is countercurrent to the water, maintaining a more constant concentration gradient.

Perfusion of air
When breathing air, the spiral valve of the conus arteriosus closes (minimizing the mixing of oxygenated and deoxygenated blood), the third and fourth gill arches open, the second and fifth gill arches close (minimizing the possible loss of the oxygen obtained in the lungs through the gills), the sixth arteriole's ductus arteriosus is closed, and the pulmonary arteries open. Importantly, during air breathing, the sixth gill is still used in respiration; deoxygenated blood loses some of its carbon dioxide as it passes though the gill before reaching the lung. This is because carbon dioxide is more soluble in water. Air flow through the mouth is tidal, and through the lungs it is bidirectional and observes "uniform pool" diffusion of oxygen.

 

[dirtychinchilla]

Yeah this cat thing is idiocy, it's like saying that all Jews will be born without foreskins

 

[Sliver]

convincing me something started to grow legs and lungs instead of gills on the other hand.... is there actual fossil evidence showing a species slowly evolving in a major way? or is it all just speculation until we have a greater understanding

Yes there are lots of fossils that show one species transitioning into another.

Tiktaalik /tɪkˈtɑːlɨk/ is a monospecific genus of extinct sarcopterygian (lobe-finned fish) from the late Devonian period, with many features akin to those of tetrapods (four-legged animals).[1] The Tiktaalik is understood as representative of the evolutionary transition from fish to amphibians. It is an example from several lines of ancient sarcopterygian fish developing adaptations to the oxygen-poor shallow-water habitats of its time, which led to the evolution of tetrapods.[2] The Tiktaalik and animals similar to the Tiktaalik are understood to be the common ancestors of a wide swathe of all terrestrial fauna: amphibians, reptiles, birds, and mammals.[3] Well-preserved fossils were found in 2004 on Ellesmere Island in Nunavut, Canada.

http://en.wikipedia.org/wiki/Tiktaalik

Tiktaalik is just one of many fossils that show transitional forms.

 

[spoffle]

The is a type of cat somewhere in the world that was being hunted for their tails so the mothers started chewing them off the cubs after birth to make them undesirable to the hunters, eventually they started being born without tails. Was a cool documentary on it.

Oh lawd, you actually believe this?

 

[spoffle]

Yes there are lots of fossils that show one species transitioning into another.



http://en.wikipedia.org/wiki/Tiktaalik

Tiktaalik is just one of many fossils that show transitional forms.

Still dodging questions then?

 

[m4rk84]

Still dodging questions then?

Out of interest and to save me going back several pages on a hunt which questions specifically were dodged?

 

[Sliver]

Just to add Arknor, all fossils can actually be classified as 'transitional' as evolution is a constant on going process. So it doesn't matter what point in the fossil record you point to, you can always correctly claim that the fossil you are looking at is transitional.

 

[spoffle]

Out of interest and to save me going back several pages on a hunt which questions specifically were dodged?

He's regularly dodging questions. The one from this thread was from Xordium asking about his credentials. He regularly tries to debate or argue with people, digs himself in to a hole and then just ignores people, claims he's "bored" and scuttles off.

Then comes back later to pick off "the low hanging fruit".