Independent: Thousands of rare Irrawaddy dolphins have been found in Bangladeshi waters, a wildlife advocacy group said today, a hopeful sign for a vulnerable species found only in small numbers elsewhere. However, the newly discovered population is already threatened by climate change and fishing nets, the New York-based Wildlife Conservation Society said. Nearly 6,000 Irrawaddy dolphins, which are related to orcas or killer whales, were found living in freshwater regions of Bangladesh’s …