What did the Tehuelche eat after becoming horse nomads?

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distribution of aboriginal South American and circum-Caribbean cultural groups — South American nomad Distribution of aboriginal South American and circum-Caribbean cultural groups.

After the introduction of the horse in the early 18th century, the Tehuelche transformed their subsistence patterns to exploit the Patagonian steppes. As horse nomads, they lived primarily on the meat of guanaco and rhea, while also consuming some plant foods. They did not practice agriculture.1