River dolphins are cetaceans, which means that they related to whales and porpoises. These mammals live only in rivers and waterways of Asia and South America. There are five species of river dolphins belonging to three different families. In Asia...

River dolphins are four living species of dolphin which reside in freshwater rivers and estuaries. They are classed in the Platanistoidea superfamily of cetaceans. Three species live in fresh water rivers. The fourth species, the La Plata Dolphin,...

A crew of Brazilian fishermen was captured on video killing 83 dolphins and joking about their illegal haul, Brazil's Ibama environmental protection agency said Tuesday.The video obtained by an Ibama researcher and broadcast by Globo TV showed the fishermen netting the dolphins, which suffocated because...

An exterminator was sentenced to prison Friday for stealing more than 2,000 exhibits including dolphin, leopard and bat skeletons in Australia's biggest museum theft.Dutch-born Hendrikus van Leeuwen, 50, was sentenced in the New South Wales state District Court to seven years imprisonment for stealing the...

An expedition searching for a rare Yangtze River dolphin ended Wednesday without a single sighting and with the team's leader saying one of the world's oldest species was effectively extinct.The white dolphin known as baiji, shy and nearly blind, dates back some 20 million years....

The Chinese crested tern, a rare sea bird whose eggs are prized by some as a delicacy, is likely to be extinct in five years if authorities do not step up protection efforts, a conservation group said Friday.The bird looks set to be the latest...