By Gurpreet Singh | October 12, 2025
Leeches attach to hosts, feeding on blood while secreting anticoagulants to keep the blood flowing.
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These parasites manipulate insects, forcing them into water where the worm completes its strange lifecycle.
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Blood-sucking nematomorphs are masters of mind control, emerging only after their host enters water.
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Found in marine environments, these worms pierce fish to suck blood using their sharp proboscis.
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Certain worms attach to eels, drinking blood while remaining hidden under slimy scales.
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Lamprey-like worms latch onto fish, rasping skin and consuming blood in freshwater rivers globally.
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Tiny worms feed on crabs and shrimps, drawing blood to sustain their underwater lifecycle.
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Waterborne hookworm larvae penetrate skin, feeding on blood and causing serious infections in humans.
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Tiny worms feed on crabs and shrimps, drawing blood to sustain their underwater lifecycle.
Image: Canva
Tiny worms feed on crabs and shrimps, drawing blood to sustain their underwater lifecycle.
Image: Canva