江豚 jiāngtún

jiāngtún noun Indo-Pacific finless porpoise; finless porpoise
Domain: Modern Chinese 现代汉语 , Subdomain: Zoology , Concept: Animal 动物
Notes: Species: Neophocaena phocaenoides; a kind of river porpoise, found in the Yangtze River and other saltwater and freshwater locations in Asia (CC-CEDICT '江豚'; Wikipedia '江豚')

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长江江豚