词路径
- entity
- physical entity
- object
- physical object
- whole
- unit
- living thing
- animate thing
- organism
- being
- animal
- animate being
- beast
- brute
- creature
- fauna
- chordate
- vertebrate
- craniate
- mammal
- mammalian
- prototherian
- monotreme
- egg-laying mammal
下位词
- Ornithorhynchus anatinus
- anteater
- duck-billed platypus
- duckbill
- duckbilled platypus
- echidna
- platypus
- spiny anteater