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Well, I was commenting on egg+spermatozoa (oogamy) being an evolutionary ancient mechanisms for sexual reproduction traceable back to the protista (way before multicellular organisms, such as T.Rex or chickens).

This is a broad evolutionary angle on the egg/chicken question (which I find interesting),

All sexually reproducing organisms derive from a common ancestor which was a single celled eukaryotic species. Many protists reproduce sexually. . .

If the egg is not necessarily of any specific type: Then it could be said that the egg came first, because other animals had been laying eggs long before chickens existed. In biology, egg is used as a general term in this way.

A more narrow speciation angle (which seems to be what you are driving at) could argue that

The modern chicken was believed to have descended from another closely related species of birds, the red junglefowl, but recently discovered genetic evidence suggests that the modern domestic chicken is a hybrid descendant of both the red junglefowl and the grey junglefowl... Assuming the evidence bears out, a hybrid is a compelling scenario that the egg came before the chicken.

allan
(in the beginning was energy, evolving (given time and negative entropy) to egg, chicken -- and in the end : a lot of words... :)

In reply to Re^3: Which came first? by ady
in thread Which came first? by Petruchio

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