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    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake — Stock Photo
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake
    Boy using magnifying glass on grass. — Stock Photo
    Boy using magnifying glass on grass.
    Structure of dog lymphatic system with lymph vessels, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, digital illustration.
    Dog anatomy with visible organs on white background, digital illustration. — Stock Photo
    Dog anatomy with visible organs on white background, digital illustration.
    Cat flea. Coloured scanning electron micrograph (SEM) of a cat flea (Ctenocephalides felis). Its body is laterally-flattened to allow it to move easily through the fur of its cat host — Stock Photo
    Cat flea. Coloured scanning electron micrograph (SEM) of a cat flea (Ctenocephalides felis). Its body is laterally-flattened to allow it to move easily through the fur of its cat host
    Close-up of grass moth sitting on grass spike. — Stock Photo
    Close-up of grass moth sitting on grass spike.
    Horse anatomy of upper body, computer illustration. — Stock Photo
    Horse anatomy of upper body, computer illustration.
    Snouted treefrog (Scinax fuscovarius) eye, close-up. 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) eye, close-up. This species is widespread in southern, south-eastern and central Brazil as well as in eastern Bolivia, Paraguay, northern Argentina, and northern Uruguay
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Horse skeleton model with detailed Trapezius muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Trapezius muscle, digital illustration.
    Anatomy of dog spleen, zoological digital illustration. — Stock Photo
    Anatomy of dog spleen, zoological digital illustration.
    Group of Trichomonas hominis protozoan parasites, digital illustration. — Stock Photo
    Group of Trichomonas hominis protozoan parasites, digital illustration.
    Horse anatomy and skeletal system, computer illustration. — Stock Photo
    Horse anatomy and skeletal system, computer illustration.
    Dog silhouette with red colored spine on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored spine on black background, digital illustration.
    Horse anatomy and skeletal system, computer illustration. — Stock Photo
    Horse anatomy and skeletal system, computer illustration.
    Structure of dog lymphatic system with lymph vessels, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, digital illustration.
    Close-up of nomada bee at tip of plant branch. — Stock Photo
    Close-up of nomada bee at tip of plant branch.
    Sawfly insect sitting on wild plant branch. — Stock Photo
    Sawfly insect sitting on wild plant branch.
    Close-up of dragonfly perched on dried wild plant. — Stock Photo
    Close-up of dragonfly perched on dried wild plant.
    Close-up of orange knee sawfly beetle on plant stem. — Stock Photo
    Close-up of orange knee sawfly beetle on plant stem.
    Baboons taking care of each other and combing fur on the nature — Stock Photo
    Baboons taking care of each other and combing fur on the nature
    Obese boy using binoculars outdoors. — Stock Photo
    Obese boy using binoculars outdoors.
    Veins in transparent dog body, anatomical computer illustration. — Stock Photo
    Veins in transparent dog body, anatomical computer illustration.
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake — Stock Photo
    Snake red blood cells. Coloured scanning electron micrograph (SEM) of whole and fractured red blood cells (erythrocytes, red) in a small blood vessel of a snake
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Scabies mite or Sarcoptes scabei — Stock Photo
    Scabies mite or Sarcoptes scabei
    Buffalo mother and baby on field during great migration in Serengeti, Tanzania. — Stock Photo
    Buffalo mother and baby on field during great migration in Serengeti, Tanzania.
    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
    Seagull bird in flight with outstretched wings over sea. — Stock Photo
    Seagull bird in flight with outstretched wings over sea.
    Scanning electron micrograph (SEM) of a copepod (subclass Copepoda). — Stock Photo
    Scanning electron micrograph (SEM) of a copepod (subclass Copepoda).
    Drone fly trapped on dried wild plant. — Stock Photo
    Drone fly trapped on dried wild plant.
    Horse skeleton, realistic 3d rendering. — Stock Photo
    Horse skeleton, realistic 3d rendering.
    Polar bear walking on snow — Stock Photo
    Polar bear walking on snow
    Dog silhouette with red colored pancreas on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored pancreas on black background, digital illustration.
    Portrait of lioness looking away in Ngorongoro, Tanzania. — Stock Photo
    Portrait of lioness looking away in Ngorongoro, Tanzania.
    Horse skeleton in transparent silhouette on black background, computer illustration. — Stock Photo
    Horse skeleton in transparent silhouette on black background, computer illustration.
    Scabies mite or Sarcoptes scabei — Stock Photo
    Scabies mite or Sarcoptes scabei
    Mosquito feeding on human blood, digital illustration. — Stock Photo
    Mosquito feeding on human blood, digital illustration.
    Horse skeleton in transparent silhouette on black background, computer illustration. — Stock Photo
    Horse skeleton in transparent silhouette on black background, computer illustration.
    Adult parasitic tick — Stock Photo
    Adult parasitic tick
    Dog anatomy with musculature and internal organs, digital illustration. — Stock Photo
    Dog anatomy with musculature and internal organs, digital illustration.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Crab, X-ray, radiology scan — Stock Photo
    Crab, X-ray, radiology scan
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Sweat bee in detailed portrait shot. — Stock Photo
    Sweat bee in detailed portrait shot.
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand. — Stock Photo
    Coloured scanning electron micrograph (SEM) of a foraminiferan microfossil from maldives beach sand.
    Male human flea — Stock Photo
    Male human flea
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Slender crab spider hiding on thin grass. — Stock Photo
    Slender crab spider hiding on thin grass.
    Vet examining a dog at clinic — Stock Photo
    Vet examining a dog at clinic
    Hydatid disease in liver, cystic echinococcosis, Computer illustration — Stock Photo
    Hydatid disease in liver, cystic echinococcosis, Computer illustration
    Full dog anatomy with skeleton and internal organs, digital illustration. — Stock Photo
    Full dog anatomy with skeleton and internal organs, digital illustration.
    Close-up of mining bee portrait, scientific macrophotography. — Stock Photo
    Close-up of mining bee portrait, scientific macrophotography.
    Veins in transparent dog body, anatomical computer illustration. — Stock Photo
    Veins in transparent dog body, anatomical computer illustration.
    Caterpillar crawling on yellow foxtail grass. — Stock Photo
    Caterpillar crawling on yellow foxtail grass.
    Maggots of house fly — Stock Photo
    Maggots of house fly
    Paramecium sp. ciliate protozoa — Stock Photo
    Paramecium sp. ciliate protozoa
    Slug caterpillar nymph on green leaf. — Stock Photo
    Slug caterpillar nymph on green leaf.
    Dog anatomy with visible organs on white background, digital illustration. — Stock Photo
    Dog anatomy with visible organs on white background, digital illustration.
    Tiny Jewel beetle on thin branch. — Stock Photo
    Tiny Jewel beetle on thin branch.