Assertion: sea lamprey | /r/CapableOf | act in the great lakes
Facets:
value: as predators
type: MANNER
Source sentences:
text: In the Great Lakes, where no such co-evolutionary link exists, sea lampreys act as predators, with each individual capable of killing up to 40 pounds (more than 20 kilograms) of fish over their 12-18 month feeding period.