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source(en.wikipedia.org...
TextThe chicken or the egg causality dilemma is commonly stated as "which came first, the chicken or the egg?" To ancient philosophers, the question about the first chicken or egg also evoked the questions of how life and the universe in general began.[1] Cultural references to the chicken and egg intend to point out the futility of identifying the first case of a circular cause and consequence. It could be considered that in this approach lies the most fundamental nature of the question. A literal answer is somewhat obvious, as egg-laying species pre-date the existence of chickens. However, the metaphorical view sets a metaphysical ground to the dilemma. To better understand its metaphorical meaning, the question could be reformulated as: "Which came first, X that can't come without Y, or Y that can't come without X?"
Text'The chicken came first, not the egg', scientists prove Read more: www.metro.co.uk...
source(www.metro.co.uk... -chicken-came-first-not-the-egg-scientists-prove
TextBut now they believe they have cracked the conundrum of what came first. British researchers say the chicken must have come first as the formation of eggs is only possible thanks to a protein found in the chicken’s ovaries. ‘It had long been suspected that the egg came first but now we have the scientific proof that shows that in fact the chicken came first,’ said Dr Colin Freeman, from Sheffield University, who worked with counterparts at Warwick University. ‘The protein had been identified before and it was linked to egg formation but by examining it closely we have been able to see how it controls the process,’ he added. The protein – called ovocledidin-17 (OC-17) – acts as a catalyst to speed up the development of the shell. Scientists used a super computer called HECToR, based in Edinburgh, to ‘zoom in’ on the formation of an egg. It showed OC-17 was crucial in kick-starting crystallisation – the early stages of forming a shell. The protein coverts calcium carbonate into calcite crystals which makes up the egg shell, creating six grammes of shell every 24 hours. Prof John Harding, also of Sheffield University, said the discovery could have other uses. ‘Understanding how chickens make shells is fascinating in itself but can also give clues towards designing new materials,’ he said. Next challenge: Why did the chicken cross the road? Read more: www.metro.co.uk...
Originally posted by definity
eggs have been around since reptiles, chicken havent. the egg came first.
Who's Rooster?I don't see many those days!This planet is an island of Amazons.
Originally posted by jude11
"What came first, the chicken or the chicken egg?"
The Rooster always comes first...
Originally posted by definity
eggs have been around since reptiles, chicken havent. the egg came first.
Originally posted by satron
The question is more interesting if it was reworded, "What came first, the chicken or the chicken egg?"
In that case, I don't know.
EDIT: Ok, I'll say the chicken egg, because it doesn't seem right that a chicken could hatch from a egg that isn't chickenedit on 20-11-2011 by satron because: (no reason given)
Originally posted by ANOK
Who cares whether it was the egg, or the chicken?
I just want to know, did it really cross the road?
What road?the chicken always have a deck attendant chickens use airlines from the beginning!
Originally posted by ANOK
Who cares whether it was the egg, or the chicken?
I just want to know, did it really cross the road?
link(www.dailytech.com...
TextIt had long been suspected that the egg came first, but now we have the scientific proof that shows that in fact the chicken came first," said Freeman. What they found was a protein, called ovocledidin-17 (OC-17), that exists only in a chicken's ovaries and is vital to eggshell formation in chickens. The protein acts as an ongoing builder that pieces microscopic parts of the shell together by converting calcium carbonate into calcite crystals. The shell would not exist without this protein, which only exists in chickens, so the end result is that the chicken came first.