An endangered fish species once thought gone is back and spawning in the lower Colorado.
The U.S. Department of the Interior reported that researchers discovered larval razorback suckers in the river on Wednesday. This is a species that's been missing in the Grand Canyon National Park since the 1990s. The razorback sucker was once found throughout the river from Wyoming to California. But alterations to habitat and the introduction of non-native species have forced the fish to Lake Meade.
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