单词 | Pterocnemia pennata |
释义 | Pterocnemia pennata (extremely rare) n WORD FAMILY Pterocnemia pennata n smaller of two tall fast-running flightless birds similar to ostriches but three-toed; found from Peru to Strait of Magellan Syn|Hyper nandu, rhea flightless bird, ratite, ratite bird flightless birds having flat breastbones lacking a keel for attachment of flight muscles: ostriches; cassowaries; emus; moas; rheas; kiwis; elephant birds |
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