Gerenuk
The giraffe gazelle of East African thornbush — the gerenuk has an extraordinarily long neck and legs that allow it to stand bipedally on its hind legs to browse up to 2 metres high in acacia bushes; the only antelope that routinely stands on its hind legs to feed; a Somali name meaning giraffe-necked describes it precisely; unlike most antelopes, it never drinks water, obtaining all moisture from browse.