A wild brown bear and her two cubs have been captured on infrared cameras in the Bacha Island National Nature Reserve in northeast China's Heilongjiang Province. The mother stayed alert as the cubs followed closely, playfully exploring the forest. Brown bears, a nationally protected species in China, require high-quality ecosystems to survive. Their presence signals improving biodiversity. In recent years, the reserve has stepped up conservation efforts, including wildlife monitoring, habitat restoration and regular patrols, delivering visible ecological gains.