The Wildlife Conservation Society (WCS) announced the discovery of a huge population of rare dolphins in South Asia. Using rigorous scientific techniques, WCS researchers estimate that nearly 6,000 Irrawaddy dolphins, which are related to orcas or killer whales, were found living in freshwater regions of Bangladeshâ’s Sundarbans mangrove forest and adjacent waters of the Bay of Bengalâ”an area where little marine mammal research has taken place up to this point. Prior to this study, the largest known populations of Irrawaddy dolphins numbered in the low hundreds or less. â’With all the news about freshwater environments and state of the...