Lamprey fish

Sea lamprey (Petromyzon marinus)

Brook lamprey

Cooperative efforts between tribes and non-Native institutions are helping conserve the under-researched Devonian darlings.

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Sea lamprey use their circular mouths filled with saw-like teeth to attach themselves to fish and suck the life out of them

A lamprey caught at Willamette Falls. As long as Indians have lived in the Northwest, they have looked to the lamprey, a jawless, eel-like fish, for food. Rick Bowmer / AP

Decoded genome of ancient sea lamprey will further understanding of vertebrate evolution.