
Professor Sung Yik-hei with a Big-headed turtle at a lab at Lingnan University in Hong Kong on April 13, 2023.

The Golden coin turtle, once used in turtle jelly but now in demand as an exotic pet. In extreme cases, they can fetch hundreds of thousands of US dollars.

Professor Sung Yik-hei monitors an area near a river in Hong Kong on April 13, 2023.

Professor Sung Yik-hei checks a surveillance camera fixed on a tree in Hong Kong on April 13, 2023.

A surveillance camera fixed on a tree is seen in Hong Kong on April 13, 2023.

A suspected poacher caught on one of Professor Sung Yik-hei's surveillance cameras.