The largest antelope in Asia, the Nilgai was brought from India to south Texas ranches in the 1920s and 30s and never left. Free-ranging herds now number in the tens of thousands across the brush country, where bulls carry a striking blue-grey coat that earns them the name blue bull. Big, wary, and fast, a Nilgai on the horizon is one of the strangest sights in American ranchland.
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