Fynbos fish, some dating back 20 million years, are disappearing from South Africa’s rivers. Conservationists warn that ...

Oscars are an aggressive and highly intelligent freshwater fish hailing from South America, specifically the tropical Amazon River Basin and its tributaries. They go by many names, including ...

The giant freshwater stingray may be the world’s largest freshwater fish. It’s also cloaked ... Experts, however, stress that the rays are non-aggressive and inquisitive.