The gerenuk, also known as the Waller's gazelle, is a long-necked species of antelope found in dry thorn bush scrub and desert in Eastern Africa. The word gerenuk comes from the Somali language, meaning "giraffe-necked". Gerenuks have a relatively small head for their body, but their eyes and ears are proportionately large. Gerenuks seldom graze but browse on prickly bushes and trees, such as acacias. They can reach higher branches and twigs than other gazelles and antelope by standing erect on their rear legs and stretching their elongated necks.