A visitor couldn't help but ask, "So, is there any chance that the otters could make a comeback in the future?"
The animal keeper nodded affirmatively, "There is hope!"
"Before the 1970s, as the city developed, the pollution in Singapore's rivers grew worse, with the waters clogged by garbage and filthy to the point that the native smooth-coated otters disappeared."
"Starting from 1977, the government initiated a 'River Cleaning' initiative, and by 1998, wild smooth-coated otters reappeared and began to multiply."
"Now, in many of the rivers and wetland parks in Singapore, you can see otters. They live and hunt in the rivers, coexisting harmoniously with humans, and have become a highlight of the city's ecological landscape."
"Those who have been to Singapore probably saw the variety of signs on the streets indicating the presence of otters nearby. This environmental improvement process actually only took a few decades."