On a lush, green patch of rolling farmland in Australia’s Queensland, cows are quietly grazing in a scene that is replicated around the world.

A closer inspection, however, would reveal that these particular bovines are a bit more high-tech than normal.

Behind one ear, each carries a device roughly the size of a matchbox – a tamper-proof, solar-powered, satellite-connected smart “tag” that is constantly transmitting real-time data back to the farmer.


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