noun🔗Share単孔類A 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. "生物の授業で、生徒たちはハリモグラやカモノハシのような単孔類は、生きた子供を産む代わりに卵を産むため、ユニークな哺乳類であることを学びました。animalbiologyorganismnatureChat with AIVocabulary GamePractice Reading
