feeding behavior biological process involved in interspecies interaction between organisms hematophagy https://github.com/geneontology/go-ontology/issues/29699 feeding on blood of other organism pg biological_process injection of substance into other organism during feeding on blood of other organism 2025-02-11T13:58:07Z taking of blood meal GO:0140106 A feeding behavior that involves the ingestion of blood. Hematophagous animals have mouth parts and chemical agents for penetrating vascular structures in the skin of hosts. To overcome natural hemostasis, vasoconstriction, inflammation, and pain sensation in the host, hematophagous animals pre-inject chemical substances with anesthetic and/or anticoagulant properties. Wikipedia:Hematophagy