Grazing generally describes a type of predation in which a herbivore feeds on plants (such as grasses), and also on other multicellular autotrophs (such as algae). Grazing differs from true predation because the organism being eaten isn't killed, and it differs from parasitism as the two organisms don't live together, nor is the grazer necessarily so limited in what it can eat (see generalist and specialist species). Many small selective herbivores follow larger grazers, who skim off the highes… (More on Grazing)