It was at the Mekong, just north of Stung Treng, that I set out to see the Irrawaddy river dolphins, some of the last remaining on the planet.

就是在上丁北面的湄公河上，我看见了在地球上最后幸存的短吻海豚。

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Then a couple more to the left, and more to the right, before I finally realised that I was at the centre of a pod of Irrawaddy river dolphins, one of the rarest species on the planet.

我终于意识到，自己已经在一群短吻海豚中间，这是地球上最稀有的物种之一。

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While Bangladesh currently supports relatively large populations of Ganges river dolphins and Irrawaddy dolphins, conservationists argue that it's crucial to address the threats they face now, while the potential for long-term survival of both species is still relatively high in comparison to other areas in Asia.

BBC: NEWS | South Asia | Bangladesh's majestic dolphins at risk