Completar frases MAMMALS and birdsVersión en línea MAMMALS and birds por MARIA JESÚS SS 1 viviparous two oviparous habitats fly hair different fur Mammals are . The means they have live babies who drink milk . They have or . Mammls live in different and can move in different ways . Birds have feather , wings , legs and a beak . Birds are . This means they eggs with hard shells . They live in habitats . Most birds can .