Yellowfin Cutthroat Trout - Extinction

Extinction

Until about 1903, greenback and yellowfin cutthroats survived together in Twin Lakes, the populations remaining isolated as both breeders and feeders. The end for the yellowfin cutthroat came soon after the introduction of the rainbow trout to Twin Lakes. The greenback population interbred with the rainbows, resulting in cutbows, but the yellowfin disappeared completely. The yellowfin is now extinct.

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