Cattle are farm animals. Female cattle are called cows and male cattle are called bulls. Baby cattle are called calves. Cattle eat grass. They have four stomachs to break down the grass into smaller and smaller bits. Purple level titles introduce a variety of topics to promote reading for pleasure and offer plenty of opportunities to look at rhyme and rhythm within words to build fluency and phrasing. PM Non-fiction books are carefully researched, presenting factual information accompanied by superb photography and realistic illustrations to engage young readers.