What is the meaning of "ero" in Japanese?

Thus エロ can be noun and adjective.

This word appeared late in Japan. It seemed エロスcould only be read in academic writings. People have invented a hybrid adjective Eroi (エロい), denoting erotic. Ir became popular among civil.

Ero is short form of Eros (エロス).

Could humans be selectively bred, like dogs, to create 2 subspecies that can no longer have offspring? Do I not understand selective breeding properly? Im not worried about the moral implications, just the science please.

What is the meaning of "ero" in Japanese?

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