The most expensive cow sold at auction is R$21,000,000 (£3.33m / $4.38m), named Mara (Brazil), in an auction in Arandú, São Paulo, Brazil, as of 1 July 2023. Mara (Viatina-19 FIV Mara Imóveis) is a 53-month-old cow of the Nelore breed, a breed known for its ability to...