Assertion: sea lamprey | /r/CapableOf | harm fish
Facets:
Source sentences:
text: During this stage, sea lampreys live burrowed in the bottom of Great Lakes tributaries or in areas near stream mouths for three to ten years, before the next stage of their life cycle when they metamorphose, migrate into the Great Lakes, and harm or kill fish as parasitic juveniles.
text: Since entering Lake Ontario in the mid-1800s, and the upper Great Lakes beginning in 1921, sea lampreys have inflicted significant economic damage, harmed the fishery and ecosystem, and changed the way of life in the region.