TONY CAMACHO / SCIENCE PHOTO LIBRARY TONY CAMACHO / SCIENCE PHOTO LIBRARY
Walia ibex (Capra walie) walking on a mountainside. These goat antelopes are considered a critically endangered species. They are only found in the Simien mountain range of northern Ethiopia where they feed on grasses, herbs and other plant matter. Both males and females have horns, but the male's horns are much larger and may reach over one metre in length. The walia stands at about a metre high at the shoulder and can weigh up to 120 kilograms. Photographed in Ethiopia.
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