1) Feeding upon dead flesh 
feeding on the dead
• (a.) Of or pertaining to the Necrophaga; eating carrion. See Necrophagan. • (a.) Of or pertaining to the Necrophaga; eating carrion. See Necrophagan.
(nә-krof´ә-gәs) feeding upon dead flesh.
Ne·croph'a·gous adjective [ Greek ... eating corpses; ... a dead body + ... to eat: confer French nécrophage .] (Zoology) Of or pertaining to the Necrophaga ; eating carrion. See Necrophagan . 
Type: Term Pronunciation: nĕ-krof′ă-gŭs Definitions: 1. Living on carrion. Synonyms: necrophilous
necrophagia, necrophagous Feeding on the flesh of dead animals (carrion) or other dead material by certain insects and some animals; saprophytic.
a feeding behaviour where an organism feeds on carrion from an organism they did not kill.
eating dead and decaying animals