Our new science comic presents an interesting discovery from the research Dries Kuijper et al: red deer react to the smell of their main predator – wolf – by showing fear; they reduce the amount of foraging and become highly alert. Wild boar, a secondary prey species for wolves, do not show any indication of a fear response. You can find the full paper (“What Cues Do Ungulates Use to Assess Predation Risk in Dense Temperate Forests?”) at the link: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0084607