 The rainbow trout discussed above hybridized with the native greenback cutthroat trout ("Oncorhynchus clarkii stomias"), causing their local extinction in the Twin Lakes area of Colorado as their hybrid “cutbows” became more prevalent.The rainbow trout has been reported to hybridize with at least two other salmonid species.Additionally, the cichlids in Lake Victoria evolved over 700 unique species in only 150,000 years and are theorized to have done so via ancient hybridization events which led to speciation.