DictionaryscavengerAnimal feeding on remains
noun

scavenger

SKAV-in-jur/ˈskævɪndʒər/

An organism that retrieves sustenance from dead or discarded matter.

A vulture is a scavenger that feeds on dead animals.

A vulture picks a small scrap from a sun-bleached rib cage, clearly showing an animal feeding on remains rather than hunting live prey.
Etymology

The scavager collected tolls on merchandise; the office later involved inspecting and cleaning streets. Removing rubbish supplied the bridge to people who collect discarded material and animals that feed on remains.

In context

In Focus1:51
It is also a scavenger, feeding on carrion.
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More examples

  • Crabs act as scavengers, eating remains on the ocean floor.
  • Gulls are scavengers that often eat discarded food.
  • Scavengers help recycle nutrients by consuming dead organisms.

Forms

scavenger · scavengers

scavenge verb — Feed on dead or discarded matter.

Similar words

carrion eater
Specifically eats dead animals, rather than other discarded matter.
detritivore
Feeds on decomposing organic particles, often from plants and animals.