The Andaman coast was one of very few places in the world with a viable population but then dead dugongs began washing up. Now half have gone

A solitary figure stands on the shore of Thailand’s Tang Khen Bay. The tide is slowly rising over the expanse of sandy beach, but the man does not seem to notice. His eyes are not fixed on the sea, but on the small screen clutched between his hands.

About 600 metres offshore, past the shadowy fringe of coral reef, his drone hovers over the murky sea, focused on a whirling grey shape: Miracle, the local dugong, is back.

Amateur conservationist and social media influencer Theerasak 'Pop' Saksritawee has a rare bond with Thailand’s critically endangered dugongs. With dugong fatalities increasing, Pop works alongside scientists at Phuket Marine Biological Centre to track the mammals with his drone and restore their disappearing seagrass habitat. Translating complex science for thousands online, Pop raises an urgent alarm about climate change, pollution and habitat loss — before Thailand’s dugongs vanish forever