dugongs

Hydroelectric dams change the flow, the 'water monster' Mekong is on the verge of extinction
Recent reports show that the number of large freshwater animal species has decreased by 97% compared to 1970, due to the natural flow of altered rivers and human catching.
The 150kg strange fish caught on Co Chien River is an extinct fish in Vietnam
150kg strange fish caught by fishermen on Co Chien River is Minh Hai, a fish that seems to be extinct in Vietnam.
The origin of the mermaid under a scientific perspective
Scientists believe that mermaids are just a product of human imagination when they see manatee or dugongs from a distance.