Social media is increasingly being used as a means of smuggling endangered otters, and Thai authorities say this is making it difficult to crack down on secret networks.
Illicit trade in the Asian small-clawed otter, an animal that has seen booming demand as pets in Japan, has been on the rise.
Police in Phatthalung province in southern Thailand arrested two people in connection with a recent investigation, including a 27-year-old man who admitted in late October to trying to smuggle otters inside cardboard boxes.