grey rhebok
US /ˈɡreɪ ˈriːbɑːk/
UK /ˈɡreɪ ˈriːbɑːk/

1.
a medium-sized antelope native to South Africa, known for its grey coat and straight, pointed horns
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The grey rhebok is often found in mountainous and hilly areas.
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We spotted a herd of grey rheboks grazing on the hillside.