Within shoreline communities, tales of cetacean altruism are at the heart of a centuries-old tradition of whale worship.
Chris Humphrey is based in Hanoi as the Vietnam Bureau Chief for Deutsche Presse-Agentur. As a freelance journalist, he also writes for Al Jazeera and... other publications, covering the environment, human rights, culture and geopolitics.
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Some 15 indigenous people from marginalised Batek group have died in the past six weeks with scores more in hospital.