Sentences with phrase «pruning back regions»

On the other hand, during times of rest, they are its gardeners and caretakers, overseeing the growth of new neurons, cultivating new connections and pruning back regions that threaten to overgrow.

But where Fijians spear lots of herbivores such as bird - beaked parrotfish, few fish remain to prune back the region's seaweeds, a blanket term for many types of big algae.