noun🔗ShareMonotremasA mammal that lays eggs and has a single urogenital and digestive orifice. Only the echidnas and platypuses are included in this group"In their biology class, the students learned that monotremes, such as echidnas and platypuses, are unique mammals because they lay eggs instead of giving birth to live young. "En su clase de biología, los estudiantes aprendieron que los monotremas, como los equidnas y los ornitorrincos, son mamíferos únicos porque ponen huevos en lugar de dar a luz crías vivas.animalbiologyorganismnatureChat with AIVocabulary GamePractice Reading