Found in the Americas, vampire bats sustain themselves by feeding on the blood of other animals, typically livestock. They make small incisions with their razor-sharp teeth and lap up the blood that flows.
A vampire finch is the only bird that feeds on blood. It is found in the Galápagos Islands. They feed on the blood of other birds, primarily the Nazca and Blue-footed Boobies. It pecks at the skin around the larger bird's feathers, creating a small wound. It then drinks the blood that wells up from the puncture.
Known for their painful bites, horseflies feed on the blood of mammals, including humans. Their sharp mouthparts cut into the skin, allowing them to consume blood while causing irritation.
While not exclusive blood drinkers, female mosquitoes require blood meals to nourish their eggs. Their notorious bites, driven by the quest for protein, often leave humans itching and swatting.
These segmented worms have a long history of medicinal use due to their ability to consume blood. Although leech therapy has ancient roots, some species of leeches still actively feed on the blood of hosts.
Parasitic ticks are known for latching onto their hosts and consuming blood. Their bites can transmit diseases, making them not only bloodsuckers but potential vectors for various illnesses.
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