Cattle refers to large quadrupedal domesticated mammals that are typically kept as livestock for their meat, milk, or hides, or for draught purposes. As mammals, they are warm-blooded vertebrates characterized by the possession of hair or fur and the birth of live young. They are diurnal animals, meaning they are primarily active during the day. Cattle belong to the broader group of animals, a multicellular eukaryotic kingdom comprising all living or extinct creatures.