Long ears and an almost giraffe-like neck identify this gerenuk, or Waller's gazelle, standing in a clearing in Marsabit National Reserve in northern Kenya. The 579-square-mile (1,500-square-kilometer) park opened in 1967 and provides protection to some of Africa's most iconic animals, including elephants, kudu, leopards, and ostriches.

(Photograph shot on assignment for, but not published in, "Kenya Says Harambee," February 1969, National Geographic magazine)