The disappearance of the baiji would be the first instance of a large aquatic mammal being driven to extinction since hunting killed off the monk seal around 1952.

• 自1952年左右僧海豹由于人类狩猎而惨遭灭绝以来,白暨豚的消失是大型水生哺乳动物被赶尽杀绝的第一例。