Amazing Creatures That Survive on a Blood-Only Diet 🩸

There are many strange diets across the animal kingdom but it is hard to think of one stranger than animals that live off a diet comprised entirely of blood and nothing else. Blood drinkers, known as sanguivores, are incredibly rare as drinking a blood only diet is fraught with issues but some animals have evolved to make this a reality, How?

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Sources:
https://www.sciencedirect.com/science/article/abs/pii/0022191063900544
https://pubmed.ncbi.nlm.nih.gov/39500370/
https://pmc.ncbi.nlm.nih.gov/articles/PMC11876839/
https://journals.biologists.com/dmm/article/18/9/dmm050763/367017/Translational-lessons-from-the-balanced-immune
https://www.science.org/doi/10.1126/sciadv.abm6494
https://www.sciencedirect.com/science/article/abs/pii/0010406X6990543X