Our new science cartoon shows the results of research on the habitat selection of the stone and pine marten. The study showed that their spatial niches are totaly segregated in Białowieża Forest. Full article: “Spatial niche segregation of sympatric stone marten and pine marten – avoidance of competition or selection of optimal habitat?” is at following address: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0139852.