Simen Mountains National Park, Ethiopia
2002
Michael Nichols

"They swarm the plateau, sometimes 800 strong, in family units averaging four females per male, plus young. ... 'It's a constant battle over sex, space, or a juicy patch of grass,' says [biologist Chadden] Hunter. Male spats [pictured] are mostly brief cheek-puffing, teeth-grinding rituals."

???From "Kings of the Hill?" November 2002, National Geographic magazine

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