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New Zealand agritech startup Halter is raising a new funding round led by Peter Thiel's Founders Fund at a roughly $2 billion valuation, doubling its unicorn status achieved just nine months earlier. The deal signals growing Silicon Valley confidence in precision livestock farming—but raises hard questions about data ownership, small-farm viability, and whether high-tech collars can deliver returns in an industry where most operations run fewer than 50 head of cattle.