People explore the mangrove swamps on boardwalks in Singapore's Sungei Buloh Wetland Reserve on Oct 27, 2022. Photo:Xinhua

Three long-tailed macaques groom each other in Singapore's Sungei Buloh Wetland Reserve on Oct 27, 2022. Photo:Xinhua

A buffy fish owl is seen in Singapore's Sungei Buloh Wetland Reserve on Jan 4, 2022. Photo:Xinhua

A wild saltwater crocodile baby rests on the head of its mother in Singapore's Sungei Buloh Wetland Reserve on June 26, 2022. Photo:Xinhua

A flock of migratory birds fly in Singapore's Sungei Buloh Wetland Reserve on Jan 4, 2022. Photo:Xinhua

People explore the mangrove swamps on boardwalks in Singapore's Sungei Buloh Wetland Reserve on Oct 27, 2022. Photo:Xinhua