River dolphins

Humankind has long felt a kinship of ocean-dwelling mammals, and human culture, customs, and literature abound with sea mammal lore. This volume covers 19 families in 3 orders. Sirenians (like manatees) are evolutionarily distant from both pinnipeds (meaning "fin-footed") and cetaceans, but ecological similarity argues for keeping these three groups together in one volume. The bulk of the volume is devoted to the cetaceans, by far the largest group of mammals inhabiting the oceans of the world full time. 

This compilation brings together current information on the status of Asian freshwater cetacean populations, the factors that have caused their recent declines, and what can be done to improve their chances for survival. All of the species or populations in quesion are classified as endangered or critically endangered in the 1996 IUCN Red List of Threatened Animals. Includes papers on water development issues, the Yangtze River Dolphin, or Baiji, the Ganges River Dolphin, or Susu, and the Yantgze River population of finless porpoisese.