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    Hydatid disease in liver caused by larvae of parasitic tapeworm Echinococcus multilocularis, computer illustration — Stock Photo
    Hydatid disease in liver caused by larvae of parasitic tapeworm Echinococcus multilocularis, computer illustration
    Naegleria brain-eating amoeba forms, digital illustration — Stock Photo
    Naegleria brain-eating amoeba forms, digital illustration
    Encrusting sponges (Phylum Porifera) in a multitude of colors corresponding to different taxa (Orange Hydroid Sponge: Timea sp., Vermilion Clathria: Clathria sp., Yellow Hyrtios: Dactylospongia sp., and Green Encrusting Sponge: Batzella sp.) line the — Stock Photo
    Encrusting sponges (Phylum Porifera) in a multitude of colors corresponding to different taxa (Orange Hydroid Sponge: Timea sp., Vermilion Clathria: Clathria sp., Yellow Hyrtios: Dactylospongia sp., and Green Encrusting Sponge: Batzella sp.) line the
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation — Stock Photo
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation
    Tick showing its mouthparts — Stock Photo
    Tick showing its mouthparts
    Parasitic head louse on human hair — Stock Photo
    Parasitic head louse on human hair
    Starfish and fish on seabed, Indonesia — Stock Photo
    Starfish and fish on seabed, Indonesia
    Close-up of the coral-eating Crown-of-Thorns Starfish (Acanthaster planci) growing a new arm (left side over Rice Coral). This was photographed while scuba diving the Kona coast, the Big Island; Island of Hawaii, Hawaii, United States of America — Stock Photo
    Close-up of the coral-eating Crown-of-Thorns Starfish (Acanthaster planci) growing a new arm (left side over Rice Coral). This was photographed while scuba diving the Kona coast, the Big Island; Island of Hawaii, Hawaii, United States of America
    Hydatid disease in liver caused by larvae of parasitic tapeworm Echinococcus multilocularis, computer illustration — Stock Photo
    Hydatid disease in liver caused by larvae of parasitic tapeworm Echinococcus multilocularis, computer illustration
    Hydatid disease in liver caused by larvae of parasitic tapeworm Echinococcus multilocularis, computer illustration — Stock Photo
    Hydatid disease in liver caused by larvae of parasitic tapeworm Echinococcus multilocularis, computer illustration
    Colored scanning electron micrograph of diatoms photosynthetic single-celled algae. — Stock Photo
    Colored scanning electron micrograph of diatoms photosynthetic single-celled algae.
    Head louse on human hair — Stock Photo
    Head louse on human hair
    Head louse on human hair — Stock Photo
    Head louse on human hair
    Echinococcosis multilocularis hydatid cyst, computer illustration — Stock Photo
    Echinococcosis multilocularis hydatid cyst, computer illustration
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation — Stock Photo
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation
    Agile Chromis (Chromis agilis) schooling over Finger Coral (Porites compressa). This underwater photograph was taken near the Captain Cook Memorial located in South Kona, the Big Island; Island of Hawaii, Hawaii, United States of America — Stock Photo
    Agile Chromis (Chromis agilis) schooling over Finger Coral (Porites compressa). This underwater photograph was taken near the Captain Cook Memorial located in South Kona, the Big Island; Island of Hawaii, Hawaii, United States of America
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation — Stock Photo
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation
    Echinococcosis multilocularis hydatid cyst, computer illustration — Stock Photo
    Echinococcosis multilocularis hydatid cyst, computer illustration
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation — Stock Photo
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation — Stock Photo
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation
    House dust mite — Stock Photo
    House dust mite
    Hydatid disease in liver, cystic echinococcosis, Computer illustration — Stock Photo
    Hydatid disease in liver, cystic echinococcosis, Computer illustration
    Eggs of parasitic worm Trichuris trichiura, computer illustration — Stock Photo
    Eggs of parasitic worm Trichuris trichiura, computer illustration
    A group of Orange Cup Corals (Tubastraea coccinea) surrounded by pink corraline algae (Florideophycaee, Rhodophyta) growing under an overhang at Molokini Crater, Maui, Hawaii, United States of America — Stock Photo
    A group of Orange Cup Corals (Tubastraea coccinea) surrounded by pink corraline algae (Florideophycaee, Rhodophyta) growing under an overhang at Molokini Crater, Maui, Hawaii, United States of America
    Hydatid disease in liver, cystic echinococcosis, Computer illustration — Stock Photo
    Hydatid disease in liver, cystic echinococcosis, Computer illustration
    Front view of a Tufted Spiny Lobster (Panulirus penicillatus) showing its tufted legs that was photographed while scuba diving the Kona Coast; Island of Hawaii, Hawaii, United States of America — Stock Photo
    Front view of a Tufted Spiny Lobster (Panulirus penicillatus) showing its tufted legs that was photographed while scuba diving the Kona Coast; Island of Hawaii, Hawaii, United States of America
    Eggs of parasitic worm Trichuris trichiura, computer illustration — Stock Photo
    Eggs of parasitic worm Trichuris trichiura, computer illustration
    Close-up of leaf beetle eggs attached to thin branch. — Stock Photo
    Close-up of leaf beetle eggs attached to thin branch.
    Dog tapeworm head — Stock Photo
    Dog tapeworm head
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation — Stock Photo
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation — Stock Photo
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation
    Hydatid disease in liver, cystic echinococcosis, Computer illustration — Stock Photo
    Hydatid disease in liver, cystic echinococcosis, Computer illustration
    Echinococcosis multilocularis hydatid cyst, computer illustration — Stock Photo
    Echinococcosis multilocularis hydatid cyst, computer illustration
    3d illustration of a schistosome fluke (Schistosoma mansoni) — Stock Photo
    3d illustration of a schistosome fluke (Schistosoma mansoni)
    Close-up of couple of long horned bees sleeping on thin branch. — Stock Photo
    Close-up of couple of long horned bees sleeping on thin branch.
    Wolf spider on sand — Stock Photo
    Wolf spider on sand
    Insects fossilised in amber — Stock Photo
    Insects fossilised in amber
    Frog hopper and few parasitic red mites nymphs on plant. — Stock Photo
    Frog hopper and few parasitic red mites nymphs on plant.
    An Ornate Butterflyfish (Chaetodon ornatissimus) swims over Finger and Lobe corals (Porites compressa and P. lobata) at Haloha Reef off Maui; Maui, Hawaii, United States of America — Stock Photo
    An Ornate Butterflyfish (Chaetodon ornatissimus) swims over Finger and Lobe corals (Porites compressa and P. lobata) at Haloha Reef off Maui; Maui, Hawaii, United States of America
    Colored scanning electron micrograph of coccoliths calcium carbonate plates from coccolithophore algal organisms. — Stock Photo
    Colored scanning electron micrograph of coccoliths calcium carbonate plates from coccolithophore algal organisms.
    Hydatid disease in liver, cystic echinococcosis, Computer illustration — Stock Photo
    Hydatid disease in liver, cystic echinococcosis, Computer illustration
    Weevil (Sitophilus sp.), coloured scanning electron micrograph (SEM). This weevil is a major agricultural pest. It primarily attacks stored grains and fruits, feeding on them with its often elongated snout, or rostrum — Stock Photo
    Weevil (Sitophilus sp.), coloured scanning electron micrograph (SEM). This weevil is a major agricultural pest. It primarily attacks stored grains and fruits, feeding on them with its often elongated snout, or rostrum
    Digital illustration of parasitic Ancylostoma duodenale hookworms. — Stock Photo
    Digital illustration of parasitic Ancylostoma duodenale hookworms.
    Underwater photograph of the putative Siphonophore species Agalma okeni taken during a blackwater (bluewater at night) scuba dive off the Kona Coast, the Big Island, Hawaii, during the summer; Island of Hawaii, Hawaii, United States of America — Stock Photo
    Underwater photograph of the putative Siphonophore species Agalma okeni taken during a blackwater (bluewater at night) scuba dive off the Kona Coast, the Big Island, Hawaii, during the summer; Island of Hawaii, Hawaii, United States of America
    A Black-Lipped Pearl Oyster (Pinctada margaritifera) which is now a protected species, living at Haloha Reef off Maui, Hawaii, USA. This is the animal that generates the precious pearls used in jewelry; Maui, Hawaii, United States of America — Stock Photo
    A Black-Lipped Pearl Oyster (Pinctada margaritifera) which is now a protected species, living at Haloha Reef off Maui, Hawaii, USA. This is the animal that generates the precious pearls used in jewelry; Maui, Hawaii, United States of America
    Echinococcus granulosus hydatid cyst, computer illustration — Stock Photo
    Echinococcus granulosus hydatid cyst, computer illustration
    Insects fossilised in amber — Stock Photo
    Insects fossilised in amber
    Microfilaria worms in blood — Stock Photo
    Microfilaria worms in blood
    Differential interference contrast light micrograph of different species of fossil unicellular radiolarians (protozoa). — Stock Photo
    Differential interference contrast light micrograph of different species of fossil unicellular radiolarians (protozoa).
    Parasitic nematode worm — Stock Photo
    Parasitic nematode worm
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation — Stock Photo
    Liver fluke. Computer illustration of adult liver fluke (Fasciola hepatica), parasite of sheep, cattle and humans. Humans ingest fluke larvae by eating infested vegetation
    Adult parasitic louse — Stock Photo
    Adult parasitic louse
    Lateral view of a Cushion Star (Culcita novaeguineae) resting on a reef off Maui; Maui, Hawaii, United States of America — Stock Photo
    Lateral view of a Cushion Star (Culcita novaeguineae) resting on a reef off Maui; Maui, Hawaii, United States of America
    Eggs of parasitic worm Trichuris trichiura, computer illustration — Stock Photo
    Eggs of parasitic worm Trichuris trichiura, computer illustration
    Digital illustration of ciliate protozoan Balantidium coli intestinal parasites causing ulcer in intestinal tract. — Stock Photo
    Digital illustration of ciliate protozoan Balantidium coli intestinal parasites causing ulcer in intestinal tract.
    Light micrograph of a waterflea, Daphnia pulex, a small freshwater crustacean. — Stock Photo
    Light micrograph of a waterflea, Daphnia pulex, a small freshwater crustacean.
    Egg of a parasitic worm Trichuris trichiura, computer illustration — Stock Photo
    Egg of a parasitic worm Trichuris trichiura, computer illustration