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The giraffe's scattered range extends from Chad in the north to South Africa in the south, and from Niger in the west to Somalia in the east. Giraffes usually inhabit savannas, grasslands, and open woodlands. Their primary food source is acacia leaves, which they browse at heights most other herbivores cannot reach.
The same 2007 study found that The West African giraffe was more closely related to the Rothchild's giraffe than the Kordofan and its ancestor may have migrated from eastern to northern Africa and then to its current range with the development of the Sahara Desert.