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    Echinococcosis multilocularis hydatid cyst, computer illustration — Stock Photo
    Echinococcosis multilocularis hydatid cyst, computer illustration
    Frog hopper and few parasitic red mites nymphs on plant. — Stock Photo
    Frog hopper and few parasitic red mites nymphs on plant.
    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
    Echinococcus granulosus hydatid cyst, computer illustration — Stock Photo
    Echinococcus granulosus hydatid cyst, computer illustration
    Human head louse — Stock Photo
    Human head louse
    Digital illustration of multiple threadworms in human intestine. — Stock Photo
    Digital illustration of multiple threadworms in human intestine.
    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.
    Close-up of leaf beetle eggs attached to thin branch. — Stock Photo
    Close-up of leaf beetle eggs attached to thin branch.
    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
    Echinococcus granulosus hydatid cyst, computer illustration — Stock Photo
    Echinococcus granulosus hydatid cyst, computer illustration
    Busy Honey Bees In A Langstroth Hive Box; Toronto, Ontario, Canada — Stock Photo
    Busy Honey Bees In A Langstroth Hive Box; Toronto, Ontario, Canada
    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
    Digital illustration of multiple threadworms in human intestine. — Stock Photo
    Digital illustration of multiple threadworms in human intestine.
    Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species — Stock Photo
    Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species
    Parasitic adult Ticks — Stock Photo
    Parasitic adult Ticks
    Hypselodoris maridadilus sea slugs — Stock Photo
    Hypselodoris maridadilus sea slugs
    Digital illustration of parasitic hookworms Ancylostoma duodenale on black background. — Stock Photo
    Digital illustration of parasitic hookworms Ancylostoma duodenale on black background.
    Parasitic nematode worm — Stock Photo
    Parasitic nematode worm
    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
    Plankton. Coloured scanning electron micrograph (SEM) of plankton containing mainly Ceratium dinoflagellates. A few diatoms are also present. Dinoflagellates are unicellular protozoans — Stock Photo
    Plankton. Coloured scanning electron micrograph (SEM) of plankton containing mainly Ceratium dinoflagellates. A few diatoms are also present. Dinoflagellates are unicellular protozoans
    Scanning electron micrograph (SEM) of a copepod (subclass Copepoda). — Stock Photo
    Scanning electron micrograph (SEM) of a copepod (subclass Copepoda).
    Echinococcus granulosus hydatid cyst, computer illustration — Stock Photo
    Echinococcus granulosus 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
    White-faced meadowhawk dragonflies mating on plant. — Stock Photo
    White-faced meadowhawk dragonflies mating on plant.
    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
    Obelia hydrozoan medusa. Light micrograph (LM) of a medusa (young polyp) from the Obelia geniculata hydroid. — Stock Photo
    Obelia hydrozoan medusa. Light micrograph (LM) of a medusa (young polyp) from the Obelia geniculata hydroid.
    Digital illustration of nits eggs of human head louse attached to human hair. — Stock Photo
    Digital illustration of nits eggs of human head louse attached to human hair.
    Echinococcosis multilocularis hydatid cyst, computer illustration — Stock Photo
    Echinococcosis multilocularis hydatid cyst, computer illustration
    Cat flea head — Stock Photo
    Cat flea head
    Dog roundworm parasite — Stock Photo
    Dog roundworm parasite
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans. — Stock Photo
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans.
    A chain of salps (Salpa sp.) photographed under water during a blackwater dive off the Kona coast, the Big Island; Island of Hawaii, Hawaii, United States of America — Stock Photo
    A chain of salps (Salpa sp.) photographed under water during a blackwater dive off the Kona coast, 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
    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
    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
    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.
    Microfilaria worms in blood — Stock Photo
    Microfilaria worms in blood
    Parasitic nematode worm — Stock Photo
    Parasitic nematode worm
    Caught lobsters in container — Stock Photo
    Caught lobsters in container
    House dust mites — Stock Photo
    House dust mites
    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).
    Adult parasitic louse — Stock Photo
    Adult parasitic louse
    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
    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.
    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
    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
    Common green darner dragonflies landing on lily pads. — Stock Photo
    Common green darner dragonflies landing on lily pads.
    Coloured scanning electron micrograph (SEM) of Pediculus humanus capitis, human head lice. P. humanus is divided into two subspecies; the head louse P. humanus capitis and the body louse P. humanus corporis — Stock Photo
    Coloured scanning electron micrograph (SEM) of Pediculus humanus capitis, human head lice. P. humanus is divided into two subspecies; the head louse P. humanus capitis and the body louse P. humanus corporis
    Sarcoptic mange mites eggs — Stock Photo
    Sarcoptic mange mites eggs
    Naegleria brain-eating amoeba forms, digital illustration — Stock Photo
    Naegleria brain-eating amoeba forms, digital illustration
    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp. — Stock Photo
    Coloured scanning electron micrograph (SEM) of the shell of the foraminiferan Orbulina sp.
    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, cystic echinococcosis, Computer illustration — Stock Photo
    Hydatid disease in liver, cystic echinococcosis, 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.
    Tapeworms infestation in human intestine, digital illustration. — Stock Photo
    Tapeworms infestation in human intestine, digital illustration.
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (red) and jaws. Magnification: x50 when printed 10 centimetres wide. — Stock Photo
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (red) and jaws. Magnification: x50 when printed 10 centimetres wide.