Add Yahoo as a preferred source to see more of our stories on Google. Alessandro Biancardi with the pending world-record Wels catfish. Although it's hard to say for sure, this is likely the biggest ...

Whale sharks (Rhincodon typus), the world’s biggest fish, are one of the most charismatic marine species. They connect with the hearts of anyone lucky enough to encounter them, making people deeply ...

The Mekong River hides some of the largest freshwater fish on Earth, and in 2005, village fishermen in northern Thailand hauled in a Mekong giant catfish so massive that scientists compared it to a ...