How many udders does a cow have?            
            
            
              
                                                                                   
            An udder is an organ formed of the mammary glands of female four-legged mammals, particularly ruminants such as cattle, goats, sheep and deer. It is equivalent to the breast in primates. The udder is a single mass hanging beneath the animal, consisting of pairs of mammary glands. In cattle there are normally two pairs.