As shown in the picture, this cow is called 'blosom', from orange farm, Illinois, USA. It is a 13-year-old Holstein black and white cow.
This week 'blosom' just won the Guinness world record and was certified as the 'world's tallest cow', 6-foot-4-inch tall (about 1.93 meters). The female rancher Patty Hanson in the picture is particularly Petite standing beside it.
As shown in the figure below, the Guinness World Records certification authority is measuring the height of 'blosom'. It needs a stool to measure the height completely.