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1977 and 1978. World Resources Institute. This point shapefile represents the number of Grevy's zebra observed in Kenya in 1977-78. Grevy’s zebra is a unique species found only in northern ... World Resources Institute.
1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, and 1996. International Livestock Research Institute. This polygon shapefile portrays number of wildebeest observed in 1977-78 and 1994-96 in the Athi-Kapiti Plains, Kenya. Note: This data shows number... International Livestock Research Institute.