An artist's reconstruction of the Weberian apparatus in a 67 million-year-old fossil fish. The Weberian structure (gold-colored bones at center) arose from a rib (shown in gray attached to several ...

Climate change is rapidly altering freshwater ecosystems — raising temperatures, altering flood pulses and oxygen levels — and driving complex, region-specific changes in how fish grow, migrate and ...

Scientists have overturned a long-standing belief about freshwater fish origins. The discovery affects otophysans, Earth’s largest freshwater fish group. These fish dominate rivers, lakes and streams ...

Over 3,200 freshwater fish species have been recorded in Africa, with 28 new freshwater fish species described in 2024 alone. Africa has the world's highest per capita catch of freshwater fish: 2.56 ...

Researchers in Alberta uncovered a fossil fish that rewrites the evolutionary history of otophysans, which today dominate freshwater ecosystems. The new species, Acronichthys maccognoi, shows early ...

Scientists are working to protect a relict fish found in only one far north Queensland river catchment. The Bloomfield River cod is the only tropical freshwater cod in the world and may have been ...