You can see right through this little aquarium fish from Thailand: Its skin is almost completely transparent. But when the light hits it just right, its body flickers with shimmering rainbow colors.

Noel Ibarra has a rich history for sniffing out fat cats. During winter 2019, the 44-year-old Lake Tawakoni and Ray Hubbard fishing guide steered 12-year-old Brayden Rogers of Cisco to a youth state ...

An “iridescent” catfish torpedoed through a rushing blackwater river in Brazil, navigating dead leaves and wood. Little did it know it was soon to be discovered as a new species. Once the “large” fish ...