the reason that this also confounds Darwinists, is that the time frame is incredibly short for such an evolutionary process to take place
What is the problem to selection mechanisms?
What we dont know is how many of the original population of sheep on the island actually survived at the time of the wall building or immediately thereafter. A sheeps rumen doesnt usually adapt to quick diaetary cjhanges but, having said that, the changes I speak of are measured in days and weeks. To quickly change a sheeps diest by starvation puts the rumentotally out of wack and then taking in entirly new food would manifest itself by a certain percentage of the flock dying or becoming stressed to exhaustion.
We have examples of this in the west where sheep have taken to actually browsing (which is foreign to their habits cause sheep dont have upper teeth and arent really designed for efficient browsing.
Sheep in the south had to quickly learn to survive on KUDZU (the plant that is eating the south).
As far as eating seaweed, if sheep are very hungry they will eat anything laying about including bits of wood. Whenever we have a lamb that exhibits eating habits foreign to its age, we always segeregate that lamb and do some interessions for possible diseases or infections.
Eating seaweed isnt so miraculous and the article stated something that was actually incorrect. ALL SHEEP are susceptible to copper toxicity, its a breed characteristic and thats the reason ALL sheep feed mixtures must be free of copper down to a few parts per million. In most cases the copper toxicity manifests itself as a condition si,ilar to parasitic anemia (worms) and you copuld medicate the **** out of em and they would die on you anyway. It takes a while for the sheeps rumen to handlecopper and often its a quick generational thing that the early (foundation poplulation) would suffer in the first few years and then it would be less acute and more oif a chronic condition.
Navajo Jacob sheep eat a diest rich in copper too and theyve evolved a resistance to the acute toxicity but they still have chronic toxicity reactions that are an "inconvenience" to them (they are constantly having diahrrea and show their inner eyelids with less than bright red circum orbital tissue).
Weve been raising sheep for about 30 yers now and my wife gives lectures to the vet students over at New Bolton on Copper toxicity and what to look for.
Sheep and most all ruminents are reaallyopportunistic feeders and, especially since theyve had over 150 years to adapt to eating good seaweed, Im not sure that the "DArwinists are confounded". Im certain that some kid at EDinburgh whose in the genetics porogram has published something on this in the grey literature. Id be surprised if its not old hat and youre just repeating some mantra from local legends.
All in all however, Id have kicked the first guy ass down the road for stressing his sheep herd by segregating them from good pasture (Although the article did say that , during lambing, the mothers are allowed pasture access) Hell, Ive known sheep that will prefer prickly pear cactii.
Ill bet cowdoc will agree with me