User blog comment:LysurusPeriphragmoides789/Centipedes: The story of a battle with fear that came to a happy ending./@comment-26222246-20161230090141/@comment-27388204-20161231054038

But that has nothing to do with favourable evolutionary traits. It's just where they happen to live. If you selectively killed all the smallest or slowest adults, then that would positively affect the gene pool.