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    Dog silhouette with red colored stomach on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored stomach on black background, digital illustration.
    Arteries in transparent dog body, cropped, anatomical computer illustration. — Stock Photo
    Arteries in transparent dog body, cropped, anatomical computer illustration.
    Round worms in human intestine, illustration. Roundworms, or nematodes, include numerous free-living and pathogenic species — Stock Photo
    Round worms in human intestine, illustration. Roundworms, or nematodes, include numerous free-living and pathogenic species
    Structure of dog musculature, computer illustration. — Stock Photo
    Structure of dog musculature, 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
    Echinococcosis multilocularis hydatid cyst, computer illustration — Stock Photo
    Echinococcosis multilocularis hydatid cyst, computer illustration
    Structure of dog lymphatic system with lymph vessels, cropped, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, cropped, digital illustration.
    Regal blue tang fish with beautiful pattern swimming in water. — Stock Photo
    Regal blue tang fish with beautiful pattern swimming in water.
    Close-up of grass moth sitting on grass spike. — Stock Photo
    Close-up of grass moth sitting on grass spike.
    Close-up of nursery web spider in hunting position on leaves. — Stock Photo
    Close-up of nursery web spider in hunting position on leaves.
    Snouted treefrog (Scinax fuscovarius). This species is widespread in southern, south-eastern and central Brazil as well as in eastern Bolivia, Paraguay, northern Argentina, and northern Uruguay — Stock Photo
    Snouted treefrog (Scinax fuscovarius). This species is widespread in southern, south-eastern and central Brazil as well as in eastern Bolivia, Paraguay, northern Argentina, and northern Uruguay
    Full dog anatomy with internal organs and skeleton, digital illustration. — Stock Photo
    Full dog anatomy with internal organs and skeleton, digital illustration.
    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.
    Adult female mosquito — Stock Photo
    Adult female mosquito
    Full dog anatomy with musculature and internal organs, digital illustration. — Stock Photo
    Full dog anatomy with musculature and internal organs, digital illustration.
    Illustration of schistosoma blood fluke flatworm on black background. — Stock Photo
    Illustration of schistosoma blood fluke flatworm on black background.
    Anatomy of dog male reproductive organs, computer illustration. — Stock Photo
    Anatomy of dog male reproductive organs, 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
    Full dog musculature with internal organs, digital illustration. — Stock Photo
    Full dog musculature with internal organs, digital illustration.
    Veins in transparent dog body, anatomical computer illustration. — Stock Photo
    Veins in transparent dog body, anatomical computer illustration.
    Close-up of garden snail in hibernation on yellow leaf. — Stock Photo
    Close-up of garden snail in hibernation on yellow leaf.
    Adult Honeybee mite — Stock Photo
    Adult Honeybee mite
    Close-up of ladybug larva in pupa stage on stem. — Stock Photo
    Close-up of ladybug larva in pupa stage on stem.
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    Dog roundworm eggs (Toxocara canis), light micrograph. — Stock Photo
    Dog roundworm eggs (Toxocara canis), light micrograph.
    Dog silhouette with visible skeleton on white background, digital illustration. — Stock Photo
    Dog silhouette with visible skeleton on white background, digital illustration.
    Flatworm Schistosome fluke — Stock Photo
    Flatworm Schistosome fluke
    Damselflies on wild plant — Stock Photo
    Damselflies on wild plant
    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
    Parasitic Tick feeding — Stock Photo
    Parasitic Tick feeding
    Close-up of Geometrid moth caterpillar mimicking branch on wild plant stem. — Stock Photo
    Close-up of Geometrid moth caterpillar mimicking branch on wild plant stem.
    Coloured scanning electron micrograph (SEM) of rods (yellow) and cones (green) in the retina of the eye. — Stock Photo
    Coloured scanning electron micrograph (SEM) of rods (yellow) and cones (green) in the retina of the eye.
    Shield bug head, detailed close-up. — Stock Photo
    Shield bug head, detailed close-up.
    Horse skeleton model with detailed Triceps brachii muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Triceps brachii muscle, digital illustration.
    Digital illustration of Lyme disease tick parasite. — Stock Photo
    Digital illustration of Lyme disease tick parasite.
    Horse skeleton model with detailed Sternocephalicus muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Sternocephalicus muscle, digital illustration.
    Naegleria brain-eating amoeba forms, digital illustration — Stock Photo
    Naegleria brain-eating amoeba forms, digital illustration
    Campopleginae pupa covered by dew drops on stem. — Stock Photo
    Campopleginae pupa covered by dew drops on stem.
    Illustration of ascariasis worm on black background. — Stock Photo
    Illustration of ascariasis worm on black background.
    Dust mite consuming skin flake — Stock Photo
    Dust mite consuming skin flake
    Dog silhouette with red colored spine on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored spine on black background, digital illustration.
    Tapeworm of cattle and other grazing animals, light micrograph. — Stock Photo
    Tapeworm of cattle and other grazing animals, light micrograph.
    Parasitic dust mite on white background, digital illustration. — Stock Photo
    Parasitic dust mite on white background, digital illustration.
    Horse skeleton in transparent silhouette on black background, computer illustration. — Stock Photo
    Horse skeleton in transparent silhouette on black background, computer illustration.
    Horse skeleton in transparent silhouette on black background, computer illustration. — Stock Photo
    Horse skeleton in transparent silhouette on black background, computer illustration.
    Parasitic louse on human head skin, digital illustration. — Stock Photo
    Parasitic louse on human head skin, digital illustration.
    Close-up of European hornet on plant, side view. — Stock Photo
    Close-up of European hornet on plant, side view.
    Dog silhouette with red colored stomach on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored stomach on black background, digital illustration.
    Echinococcosis multilocularis hydatid cyst, computer illustration — Stock Photo
    Echinococcosis multilocularis hydatid cyst, computer illustration
    Veins in transparent dog body, anatomical computer illustration. — Stock Photo
    Veins in transparent dog body, anatomical computer illustration.
    Horse skeleton, realistic 3d rendering. — Stock Photo
    Horse skeleton, realistic 3d rendering.
    Female Praying mantis — Stock Photo
    Female Praying mantis
    Flying adult female mosquito — Stock Photo
    Flying adult female mosquito
    Thornback ray (Raja clavata), X-ray. — Stock Photo
    Thornback ray (Raja clavata), X-ray.
    Colorful harlequin bug sitting on thin plant branch. — Stock Photo
    Colorful harlequin bug sitting on thin plant branch.
    Lynx spider sitting on wild plant stem. — Stock Photo
    Lynx spider sitting on wild plant stem.
    Dog silhouette with visible musculature on white background, digital illustration. — Stock Photo
    Dog silhouette with visible musculature on white background, digital illustration.
    Digital illustration of multiple threadworms in human intestine. — Stock Photo
    Digital illustration of multiple threadworms in human intestine.
    Scorpion fly foot — Stock Photo
    Scorpion fly foot
    Green colored dust mite, digital illustration. — Stock Photo
    Green colored dust mite, digital illustration.