Others said, "the egg came first."

另一方认为：先有蛋。

youdao

LONG BEACH, Calif. - Astronomers may have solved a cosmic chicken-and-the-egg problem: Which came first - galaxies or the supermassive black holes in their cores?

加州长滩市—天文学家也许已经解决了宇宙的鸡与蛋问题：星系和星系核心的特大质量黑洞哪个最先出现？

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Mr Papineau, an expert in the philosophy of science, agreed that the first chicken came from an egg and that proves there were chicken eggs before chickens.

科学哲学方面的专家Papineau先生同意这样的观点，即第一只鸡是鸡蛋孵出的并且是先有鸡蛋后有鸡。

youdao

It is like trying to establish which came first: The chicken or the egg.

BBC: Arab press lambasts Jenin report

There are obvious causal questions here, of a particularly grim kind: which came first, the crippled chicken or the broken egg?

NEWYORKER: Slaughterhouse