Culture&Art : A South American river dolphin uses branches, weeds and lumps of clay to woo the opposite sex and frighten off rivals, scientists have discovered.
Source: BBC News, Great Britain    By: Richard Black    Comment: River dolphins are among the most threatened of all cetaceans; the baiji, a native of the Yangtze in China, may already have gone extinct in the last two years, while numbers of the Indus or blind river dolphin of South Asia are believed to be down to around the 3,000 mark.    26 Mar 08 at 06:46 GMT