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A school of non-hybridized westslope cutthroat trout.

Detailed Description

A school of non-hybridized westslope cutthroat trout (Oncorhynchus clarki lewisi) from the Flathead Basin in Montana.  These fish, their scientific name inspired by Lewis and Clark, represent genetic and life history diversity of western trout by surviving extreme climatic variation over millions of years.  


Public Domain.

This image is in teh public domain.