What they learned is that bifurcation in worms has been observed in over 60 species of worms across the annelid family tree, and in some species, up to 20% of the juveniles ended up with some form of bifurcation.

他们了解到，人们已在环节动物门中60多种蠕虫上观察到了分叉现象，而在某些种类中，多达20%的幼虫最终会呈现某种分叉状态。