_:vb6956811 "A small cetacean of the family Phocoenidae, related to dolphins and whales."@en . _:vb6956811 . . _:vb6956812 "They captured 25 porpoises and set them free back into the Yangtze after raising them for a month in Puqi County, Hubei."@en . _:vb6956812 . . . . "1" . . _:vb6956812 "1991, Kaiya Zhou, Zhang Xingduan, translated by Luo Changyan, Baiji: The Yangtze River Dolphin and Other Endangered Animals of China\u200E[1], \u2192ISBN, \u2192LCCN, \u2192OCLC, page 76:"@en . .