Scavengers
Concept · Stellaris 4.5.2
Scavengers in the Stellaris encyclopedia: Scavengers produce small amounts of Alloys, Amenities, and Research Points.
Scavengers in the game's words
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Scavengers produce small amounts of Alloys, 
Amenities, and 
Research Points.
Scavengers explore the ruins of the Crashed Slaver Ship for anything of value.
Entries that mention Scavengers
Source: common/game_concepts (concept_broken_shackles_scavenger) and localisation/english, Stellaris Cygnus v4.5.2 (9776).