the practice, of some animals, of feeding on blood

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İngilizce - İngilizce
hematophagy

Most Lower brachyceran taxa also have nectarivorous or related fluid diets..., although a few basal clades have shifted to predominantly hematophagy; particularly the Spaniidae, Anthericidae, Xylophagidae, and certain lineages within the Tabanidae.