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    Close-up of empid fly on frozen branch covered by ice crystals. — Stock Photo
    Close-up of empid fly on frozen branch covered by ice crystals.
    Aphid body infected by parasitic wasp. — Stock Photo
    Aphid body infected by parasitic wasp.
    Dog silhouette with red colored genitals on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored genitals on black background, digital illustration.
    Parasitic adult Ticks — Stock Photo
    Parasitic adult Ticks
    Full dog anatomy with skeleton and internal organs, digital illustration. — Stock Photo
    Full dog anatomy with skeleton and internal organs, digital illustration.
    Blow fly (Calliphoridae) head, close-up. — Stock Photo
    Blow fly (Calliphoridae) head, close-up.
    Structure of dog skeleton, cropped, computer illustration. — Stock Photo
    Structure of dog skeleton, cropped, computer illustration.
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull. — Stock Photo
    Colored scanning electron micrograph of cancellous bone tissue from starling bird skull.
    Veiled chameleon tail — Stock Photo
    Veiled chameleon tail
    Grivet monkey sitting on tree branch. — Stock Photo
    Grivet monkey sitting on tree branch.
    Colored scanning electron micrograph of variety of yeast species growing in larval tunnel of codling moth Cydia pomonella in mature apple. — Stock Photo
    Colored scanning electron micrograph of variety of yeast species growing in larval tunnel of codling moth Cydia pomonella in mature apple.
    Maggots of house fly — Stock Photo
    Maggots of house fly
    Close-up of mining bee portrait from lateral view. — Stock Photo
    Close-up of mining bee portrait from lateral view.
    Paramecium sp. ciliate protozoa — Stock Photo
    Paramecium sp. ciliate protozoa
    Echinococcus granulosus hydatid cyst, computer illustration — Stock Photo
    Echinococcus granulosus hydatid cyst, computer illustration
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    Arteries in transparent dog body, anatomical computer illustration. — Stock Photo
    Arteries in transparent dog body, anatomical computer illustration.
    Close-up of gossamer winged butterfly larva on wild plant. — Stock Photo
    Close-up of gossamer winged butterfly larva on wild plant.
    Dog silhouette with visible skeleton on blue background, digital illustration. — Stock Photo
    Dog silhouette with visible skeleton on blue background, digital illustration.
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    Dog anatomy with visible organs on black background, digital illustration. — Stock Photo
    Dog anatomy with visible organs on black background, digital illustration.
    Dog anatomy with visible organs on white background, digital illustration. — Stock Photo
    Dog anatomy with visible organs on white background, digital illustration.
    Colored scanning electron micrograph of scales from silverfish insect living fossil. — Stock Photo
    Colored scanning electron micrograph of scales from silverfish insect living fossil.
    Eurasian spoonbill feeding in wetland, close-up. — Stock Photo
    Eurasian spoonbill feeding in wetland, close-up.
    Dog silhouette with visible skeleton on blue background, digital illustration. — Stock Photo
    Dog silhouette with visible skeleton on blue background, digital illustration.
    Silk moth (Bombyx mori) head and antenna. — Stock Photo
    Silk moth (Bombyx mori) head and antenna.
    Anatomy of dog gallbladder in transparent body, computer illustration. — Stock Photo
    Anatomy of dog gallbladder in transparent body, computer illustration.
    House dust mites — Stock Photo
    House dust mites
    Microscopic Dust mites on floor — Stock Photo
    Microscopic Dust mites on floor
    Close-up of marbled skipper moth on dried wildflower. — Stock Photo
    Close-up of marbled skipper moth on dried wildflower.
    Horse skeleton model with detailed Superficial digital flexor muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Superficial digital flexor muscle, digital illustration.
    Dog anatomy with visible organs on black background, digital illustration. — Stock Photo
    Dog anatomy with visible organs on black background, digital illustration.
    Barbary ground squirrel eating cashew nut on rocks. — Stock Photo
    Barbary ground squirrel eating cashew nut on rocks.
    Ground beetle in black and purple, detailed portrait. — Stock Photo
    Ground beetle in black and purple, detailed portrait.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Close-up of two horses looking in camera with fisheye effect on green meadow under blue sky with clouds. — Stock Photo
    Close-up of two horses looking in camera with fisheye effect on green meadow under blue sky with clouds.
    Anatomy of dog spleen, zoological digital illustration. — Stock Photo
    Anatomy of dog spleen, zoological digital illustration.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Mosquito feeding on human blood, digital illustration. — Stock Photo
    Mosquito feeding on human blood, digital illustration.
    Coloured scanning electron micrograph (SEM) of a tardigrade (Macrobiotus sp.), or water bear. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a tardigrade (Macrobiotus sp.), or water bear.
    Horse anatomy with visible internal organs on white background, computer illustration. — Stock Photo
    Horse anatomy with visible internal organs on white background, computer illustration.
    Structure of dog vascular system with colorful blood vessels in transparent body, cropped, computer illustration. — Stock Photo
    Structure of dog vascular system with colorful blood vessels in transparent body, cropped, computer illustration.
    Adult female mosquito — Stock Photo
    Adult female mosquito
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital 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
    Sweat bee searching for nectar in buttercup flowers. — Stock Photo
    Sweat bee searching for nectar in buttercup flowers.
    Horse skeleton model with detailed Transversus thoracis muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Transversus thoracis muscle, digital illustration.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Veins in transparent dog body, cropped, anatomical computer illustration. — Stock Photo
    Veins in transparent dog body, cropped, anatomical computer illustration.
    Ant head. Coloured scanning electron micrograph (SEM) of the head of an ant (family Formicidae). showing its large compound eyes (blue) 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 (blue) and jaws. Magnification: x50 when printed 10 centimetres wide.
    Horse anatomy with visible internal organs, computer illustration. — Stock Photo
    Horse anatomy with visible internal organs, computer illustration.
    Structure of dog skeleton, rear view computer illustration. — Stock Photo
    Structure of dog skeleton, rear view computer illustration.
    Pink colored digital illustration of parasitic dust mites. — Stock Photo
    Pink colored digital illustration of parasitic dust mites.
    Wood boaring beetle sitting on plant branch. — Stock Photo
    Wood boaring beetle sitting on plant branch.
    Horse anatomy and skeletal system, computer illustration. — Stock Photo
    Horse anatomy and skeletal system, computer illustration.
    Six spot burnet moth sleeping on dry plant. — Stock Photo
    Six spot burnet moth sleeping on dry plant.
    Several types of hard and soft corals with school of tropical fishes. — Stock Photo
    Several types of hard and soft corals with school of tropical fishes.
    Dog anatomy with visible organs on black background, digital illustration. — Stock Photo
    Dog anatomy with visible organs on black background, digital illustration.
    Close-up of halictid bee perched on wild plant. — Stock Photo
    Close-up of halictid bee perched on wild plant.