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blood fluke
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Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters
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Lion (panthera leo)
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Fluke Eggs of the blood fluke Schistosoma haematobium become embedded in the bladder wall, triggering chronic inflammation, tissue damage, and genetic mutations that fuel the development of bladder cancer.

blood fluke

flatworm
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blood fluke, any of certain parasitic flatworms that live in the veins of the host organism. See fluke.

This article was most recently revised and updated by Amy Tikkanen.