Scientists found “rainbow” creatures in temporary ponds of the Democratic Republic of the Congo and discovered a new species. Photo from A. Kalumba via Nagy (2025) Near a river in the Democratic ...

Bignose unicornfish (Naso vlamingii) are an Indo-Pacific reef species known for their blue markings. They can quickly hide these markings if needed. “We are sharing those color stories to show all the ...

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.

Jul. 16—Most rainbow trout swimming in Montana's waters are not native to the state — with the singular exception of the redband trout in the Kootenai drainage. While common throughout most of Montana ...

While native to Western North America, rainbow trout have become one of the most popular freshwater gamefish around the globe through stocking programs. They are coveted by both conventional and fly ...