04 Nov 17
So does evolution give a reason as to why the Giraffe is as it is? Is there a direct fossil record that shows all of the evolutions of the Giraffe?
http://www.bbc.com/earth/story/20160629-giraffes-did-not-evolve-long-necks-to-reach-tall-trees
Interesting that long necks did not help Giraffes to survive since during the times of short food supply Giraffes feed on low shrubs.
04 Nov 17
1 edit
From your link:
In other words, there is no obvious sexual dimorphism in neck length. As a result, the authors concluded that the "competing browsers" hypothesis "is the more likely explanation for tallness in giraffes".
Yes there are fossils.
https://www.sciencedaily.com/releases/2015/10/151007033229.htm
04 Nov 17
So what you are saying is that there is no real explanation for the long necks, just that there are clues about how it happened. These clues are not facts, just puzzle pieces that some people believe fit.
Interesting, evolution without an actual reason based on clues and no facts.
Originally posted by @eladarwhat are you talking about? Evolution is the real explanation.
So what you are saying is that there is no real explanation for the long necks,
And evolution theory these days is based entirely on the facts given by the overwhelming evidence.
The laryngeal nerve of the giraffe is proof of mindless natural selection as it would be absurd that an intelligence designing that could make such a completely stupid 'design' imperfection.
06 Nov 17
Originally posted by @eladarUnfortunately "Evolution" does not talk to us.
So does evolution give a reason as to why the Giraffe is as it is? .
All we know is the fact that giraffes exist and at some time in their past a long
neck was preferable (from a survival/mating perspective) than a shorter neck.)
The reason for any animals attributes may not now be present in their environment
now so sometimes scientists have to make educated guesses.
12 Nov 17
Originally posted by @wolfgang59How do we know that a long neck was preferable? By circular reasoning?
Unfortunately "Evolution" does not talk to us.
All we know is the [b]fact that giraffes exist and at some time in their past a long
neck was preferable (from a survival/mating perspective) than a shorter neck.)
The reason for any animals attributes may not now be present in their environment
now so sometimes scientists have to make educated guesses.[/b]
Originally posted by @eladarThose with longer necks were obviously less likely to starve to death from food being out of their reach.
How do we know that a long neck was preferable?
Those that starve to death because of shorter necks are less likely to pass on their genes thus, in an environment short of food where much of the food is just out of reach of many of them, genes for shorter necks tended to be passed on less often than those for longer necks.
Thus, in this case, the natural environment over many generations gradually selectively bred them to have longer necks and in an analogies way to how humans might hypothetically selectively breed into existence a new breed of long-necked dogs by only allowing those with the longest necks to pass on their genes but with the main difference that it is the mindless natural environment rather than a conscious person that favored the giraffes with long necks.
The only part of that which is a mystery is how people like you can fail to understand or be confused by these extremely simple concepts that the average halfwit can easily understand.
12 Nov 17
Originally posted by @humyObviously low shrubs are the food source during times of foosd shortages. That is what the link said.
Those with longer necks were obviously less likely to starve to death from food being out of their reach.
Those that starve to death because of shorter necks are less likely to pass on their genes thus, in an environment short of food where much of the food is just out of reach of many of them, genes for shorter necks tended to be passed on less often than th ...[text shortened]... r be confused by these extremely simple concepts that the average halfwit can easily understand.
Originally posted by @eladarSo you are making the argument that the entire science of evolution is false because you don't see why giraffes have long necks. You figure one falsification negates the entire science. The only problem with your thesis is there are earlier shorter necked giraffes but hey, that doesn't bother you does it.
Obviously low shrubs are the food source during times of foosd shortages. That is what the link said.
Why don't you attack marsupials, how could they have possibly evolved that sac?
Amazing.
14 Nov 17
Originally posted by @eladarWell it COULD'T be that there is more nutrition in a large tree, the volume of said leaves and twigs being much larger and therefore more leaves available than a low lying bush now could it?
So does evolution give a reason as to why the Giraffe is as it is? Is there a direct fossil record that shows all of the evolutions of the Giraffe?
http://www.bbc.com/earth/story/20160629-giraffes-did-not-evolve-long-necks-to-reach-tall-trees
Interesting that long necks did not help Giraffes to survive since during the times of short food supply Giraffes feed on low shrubs.
18 Nov 17
Originally posted by @sonhouseThe entire field of evolution? No.
So you are making the argument that the entire science of evolution is false because you don't see why giraffes have long necks. You figure one falsification negates the entire science. The only problem with your thesis is there are earlier shorter necked giraffes but hey, that doesn't bother you does it.
Why don't you attack marsupials, how could they have possibly evolved that sac?
Amazing.
Does it call into question assumptions? Yes
18 Nov 17
Originally posted by @sonhouseIf this is true then why did only giraffes develop long necks?
Well it COULD'T be that there is more nutrition in a large tree, the volume of said leaves and twigs being much larger and therefore more leaves available than a low lying bush now could it?