Grazing generally describes a type of feeding, 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 from is not generally killed, and it differs from parasitism as the two organisms do not 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 highest, tough growth of plants, exposing tender shoots. For terrestrial animals, grazing is normally distinguished from browsing in that grazing is eating grass or forbs, and browsing is eating woody twigs and leaves from trees and shrubs.
The word graze derives from the Old English (OE) grasian, "graze", itself related to OE graes, "grass".
Water animals that feed for example on algae on stones are called grazers-scrapers. Grazers-scrapers feed also on microorganism and dead organic matter on various substrates.
Etosha National Park is a national park in northwestern Namibia. The park was proclaimed a game reserve on March 22, 1907 in Ordinance 88 by the Governor of German South West Africa, Dr. Friedrich von Lindequist. It was designated as Wildschutzgebiet Nr. 2 which means Game Reserve Number 2, in numerical order after West Caprivi (Game Reserve No. 1) and preceding Namib Game Reserve (No. 3). In 1958, Game Reserve No. 2 became Etosha Game Park and was elevated to status of National Park in 1967 by an act of parliament of the Republic of South Africa which administered South-West Africa during that time.
Etosha National Park spans an area of 22,270 square kilometres (8,600 sq mi) and gets its name from the large Etosha pan which is almost entirely within the park. The Etosha pan (4,760 square kilometres (1,840 sq mi)) covers 23% of the area of the total area of the Etosha National Park. The park is home to hundreds of species of mammals, birds and reptiles, including several threatened and endangered species like the black rhinoceros.
The park is located in the Kunene region and shares boundaries with the regions of Oshana, Oshikoto and Otjozondjupa.