PETER CHADWICK / SCIENCE PHOTO LIBRARY PETER CHADWICK / SCIENCE PHOTO LIBRARY
Cape mountain zebra stallions (Equus zebra zebra) sparring. The males of this species live in bachelor groups, from which individuals will attempt to challenge the dominant stallion in a breeding herd. It is endemic to South Africa and classed as an endangered species. Photographed in the De Hoop Nature Reserve, South Africa.
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