絕大部分呢啲蛋白質 都能夠由單基因家族解釋 所以 ， 我哋今日睇到不同種類嘅蜘蛛絲 都係由單基因家族所編碼而成 因此 ， 可以假設 原始蜘蛛祖先只係做一種絲 同埋喺過去嘅三億八千萬年 有一種蜘蛛絲基因複製咗 跟着 ， 分開演變 、 專門化 同一條基因不停不停咁重複以上 最後演化出大量唔同樣嘅蜘蛛絲
Most of these proteins can be explained by a single gene family, so we see different kinds of spider silk today being encoded by a single gene family, so it can be assumed that the primitive spider ancestors only made a kind of silk, and in the past 380 million years, there was a spider silk gene that copied and followed, evolved separately, specialized the same gene, and repeated the same gene over and over again, and finally evolved a large number of different spider silks