호주 동부에 서식하며 알을 낳는 반수생 포유동물로, 오리와 비슷한 부리와 물갈퀴가 있는 발을 가짐.
A semiaquatic egg-laying mammal native to eastern Australia, characterized by a duck-like bill, webbed feet, and dense fur.
예문:
"The platypus is one of the few mammals that lays eggs instead of giving birth to live young."
"Male platypuses have venomous spurs on their hind feet for defense."