Which came first? The chicken or the egg?
5440
This is actually very easy to answer, based on evolution the egg had to come first. Evolution works like this: There are slight changes in the genetic information of the sex cells (i.e. eggs and sperm) of individuals that are passed on to the offspring of any two parents. These changes in the genetic makeup are called mutations. Mutations can either have: 1) A deleterious effect on the offspring (genetic disorders may arise, many times these are lethal); 2) sometimes these mutations may be advantageous, making an individual more fit than its neighbors (this is sometimes referred to as conferring an advantage); or 3) these mutations can have no effect, making no change from parent to progeny.\n\nIn the case of the chicken, it must have evolved from something else that became less fit than the chicken and eventually becoming extinct. The chicken became a chicken from this other organism through mutations that built up over time in subsequent generations. However, whatever the genetic makeup that finally became defined as a chicken, that individual was first conceived and developed in an egg before being hatched. The egg and sperm that fused to produce the chicken didn't bypass the period of gestation within an egg that had developed in the bird family millions of years before the chicken came along.\n\nSo the simple answer to this question is the egg came first -- unless you believe in fairy tales?
399817
the chicken evolved and laid an egg.
1050527
recent studies have shown that chicken came first as life started with single cell organisms, & by adaptation they grew to multi cellular which were mammals . so the chicken was formed before egg.
41478
Which came first - the chicken or the egg? \n\n"The chicken" came first - in the sentence of the question. If the question is phrased differently, the answer is different.\n\n!
598261
The egg came first.  At some time in the evolutionary development of the chicken as we know it, there was some previous creature that was not quite a chicken.  Let's call this a "proto-chicken".  In the ovary of the proto-chicken, which is always subject to some small amount of mutation, it carries all the genes that would make a proto-chicken, but it gets mutated to form what we think of as a chicken.  The egg is laid, and when it hatches, it will become a chicken.  Thus, the proto-chicken which laid the egg is not a chicken, but the egg will produce a chicken, so the egg came first.
476515
Most would say the chicken, which is NOT true;\n\n"The egg! The amniotic egg (though not a chicken egg) was around on earth thousands of years before the chicken ever evolved."\n\nEggs existed long before chickens, according to On Food and Cooking: The Science and Lore of the Kitchen by Harold McGee. These all-in-one reproductive cells, incorporating the nutrients to support life, evolved about a billion years ago. The first eggs were hatched in the ocean. As animal life emerged from the water about 250 million years ago, they began producing an egg with a tough leathery skin to prevent dehydration of its contents on dry land. The chicken evolved only about 5,000 years ago from an Asian bird.\n\nWhat makes a chicken "more evolved" than a fly?  Is it because a chicken is bigger than a fly?  Both flies and chickens have had the same amount of time to evolve to their present state.  The ancestors of chickens and flies split\noff from their common ancestor a long time ago, but both have continued to evolve since then.
849398
The hen (chicken) came first.  The hen layed an egg and had to sit on the egg in order for it to hatch.  If there were an egg first, how would it have hatched?  Look at it this way: Did God put Adam and Eve in the garden or  sperm and ovum?
53344
Which came first - the chicken or the egg? \n\n"The chicken" came first - in the sentence of the question. \n\nIf the question is phrased differently, the answer is different.
1172282
the hen came first because God made the animal and the animal layed the egg...that'a my theory :)
414535
its the chicken which came first\n\negg is the method of reproduction\n\nnow u may say "From where did the chicken come?"\n\nits the course of evolution\n\nfinally\nchicken came first\nand found a method of reprodution\nthat is the EGG
517841
The egg.  Dinosaurs were laying eggs far before chickens had evolved, so the egg had to've come first.  :)
313302
A big idiot came first and laid an egg and kept asking stupid question all his life. The egg turned into the chicken. No one remembers what happened after that - only that stupid question is still kept alive by its predecessors- who came first
300866
the egg\nthese webistes might help more\nhttp://science.howstuffworks.com/question85.htm\nhttp://www.word-detective.com/howcome/chickenoregg.html\nhttp://www.aeb.org/KidsAndFamily/which_came_first.htm\nhttp://en.wikipedia.org/wiki/The_chicken_or_the_egg\nhttp://www.answerbag.com/q_view.php/2562
580717
this question has been asked many times, not just throughout time but also many times just here on yahoo answers.  i say "egg"... for a thorough explanation you can look up my answers.\n\ni just find it very interesting that when asked in the "pets" forum, most people say something religious to support their claim that chickens came first, and on the "science" forum, more people say "egg" and support their claim with "science has proved...."\n\nmeh, science never really proves anything... but this one just requires a little thought about the true nature of the question.  it would be a little more difficult to answer if it was "which came first, the chicken or the chicken egg?"  but no one ever asks that question, so we're all safe.  whew.  :)
136554
The question that has perplexed us for multiple postings.\n\nThe egg came first, The first chicken came from an egg from something that was not quite a chicken.  Please see this handy movie for more details:
224362
the egg. it was formed by organisms and eventually hatched.\n\ni first thought, well, if the chicken came first, it had to come from and egg, but then that egg would have to come from the chicken, then that chicken had to had come from and egg, and so on and forth
28233
Breakfast: Scrambled eggs\nLunch or dinner: Fried chicken\n\nTherefore, the egg came first.