Spring Chinook are treasured by Indigenous communities in the Klamath basin, who have long recognized the distinction between spring and fall Chinook runs. However, the view of Western science has been that spring Chinook could easily re-evolve from fall Chinook if they disappear, and as a result, there have been no special conservation provisions for spring Chinook. But a few years ago a team of researchers made a discovery that could completely change the way we see these salmon and how the...