Musk-oxen Huddle Together in Chilly WindsA herd of Musk-ox, Ovibos moschatus, huddle together in a protective formation, in chilly winds.
A beautiful National Geographic photo, featured here on a photo postcard, taken by Norbert Rosing.
Distinct Behavior of the Musk OxMusk-oxen have this distinctive defensive behavior - when the herd is threatened, the bulls and cows stand shoulder-to-shoulder in a circle, with their young in the middle, and their sharp horns facing outward towards their foes.
Recommended Articles on Musk OxAnimal Diversity Web's article on Musk-ox
Wikipedia's exhaustive article on Muskox
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