Assertion: cetacean | /r/HasProperty | discovered
Facets:
Source sentences:
text: Porpoises range in size from the 1.4 metres (4.6 ft) and 54 kilograms (119 lb) vaquita, the smallest cetacean to be discovered, to the 2.3 metres (7.5 ft) and 220 kilograms (490 lb)