Irrawaddy dolphins, which are related to orcas or killer whales, were found living in freshwater regions of Bangladesh’s Sundarbans mangrove forest and the adjacent waters of the Bay of Bengal, the New York-based Wildlife Conservation Society said

Irrawaddy dolphins, which are related to orcas or killer whales, were found living in freshwater regions of Bangladesh’s Sundarbans mangrove forest and the adjacent waters of the Bay of Bengal, the New York-based Wildlife Conservation Society said