This is the heart-warming moment a black swan was spotted feeding a koi fish. The video recorded on June 14, 2025, in Zhejiang, China, shows the bird on the water’s edge go to retrieve food and feed ...

Scientists have long been captivated by killifish because they tend to pop up in unexplained places with seemingly no apparent sign of origin. While they typically appear in the fresh and brackish ...

This is the amusing moment a swan was appeared to share food with Koi fish in a pond. Shen Xin and his family were strolling through a park when they saw the black swan surrounded by a school of ...

Killifish manage to endure a variety of environments. The wee freshwater fish survive in isolated desert pools, lakes made by floodwater, even seasonal ponds that are little more than puddles. One ...

These fish turn up in many surprising locations, but this was one place scientists didn’t expect to find them. By Veronique Greenwood Killifish manage to endure a variety of environments. The wee ...