The next step, he says, is to identify these characteristics by modifying them in young birds to see whether the birds later seek out unrelated, yet superficially similar peers.

• 他说下一步工作是找到这些特征，并在幼孔雀中加以改造，看看它们是否会在后来去寻找没有亲缘关系的、但特征相似的孔雀。