During a farm visit, a pupil asked, “What colour of cow does the blue top milk come from?” The farmer replied, “Where do you think milk comes from?” The pupil answered; Asda.

During a farm visit, a pupil asked, “What colour of cow does the blue top milk come from?” The farmer replied, “Where do you think milk ...

Whether driven by morbid curiosity or in pursuit of offspring with desirable characteristics, humans have selectively bred ...