The article discusses a study by Peter Sarkies and colleagues, published in the periodical "PLOS Biology" on workhorse worm's phylogenetic neighborhood which revealed a degree of evolutionary dynamism in the Piwi-piRNA system and in other small RNA pathway and other transposon management schemes. Topics covered include the five groups or clades of the nematodes, the emergence of piRNAs in Caenorhabditis elegans, and the implication of similar systems found in plants and fungi.