Their fur is velvety and thick and has two layers: their guard fur keeps their underfur dry under water to keep their body heat.

Otters likely repopulated Singapore by swimming across the Johor Straits from Malaysia in the 1990s

At one year old, young often disperse to find a home range of their own. BUT While most wild otters would leave their family at around two years old, Singapore’s otters will stay with their parents until three or four, as they wait for territory to open up.

In India, Pakistan and Bangladesh fishermen will train these cooperative animals to drive the fish into their nets.

Now at least 90 otters, part of 10 thriving families, live within the island-state, and their population is growing, thanks to rich food sources—such as koi ponds—and lack of predators.

But the rise of the urban otter has caused some conflicts with people. Homeowners in the gated-community enclave on the island of Sentosa reported in 2015 that their koi carp ponds had been emptied by otters, and one hotel in the same area lost 85,000 Singaporean dollars’ worth of ornamental fish over eight months

Smooth-coated otters in Sungei Buloh Wetland Reserve were featured in a documentary narrated by Sir Attenborough, called Wild City