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    Veins in transparent dog body, anatomical computer illustration. — Stock Photo
    Veins in transparent dog body, anatomical computer illustration.
    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.
    Conceptual digital illustration of horseshoe crab blood in blue color containing haemocyanin and amoebocytes. — Stock Photo
    Conceptual digital illustration of horseshoe crab blood in blue color containing haemocyanin and amoebocytes.
    Horse skeleton model with detailed Triceps brachii muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Triceps brachii muscle, digital illustration.
    Adult Bush cricket — Stock Photo
    Adult Bush cricket
    Digital illustration of female lyme disease ticks on black background — Stock Photo
    Digital illustration of female lyme disease ticks on black background
    Dog anatomy with musculature and internal organs, digital illustration. — Stock Photo
    Dog anatomy with musculature and internal organs, digital illustration.
    Close-up of checkered skipper butterfly on wild plant. — Stock Photo
    Close-up of checkered skipper butterfly on wild plant.
    Digital illustration of parasitic hookworms Ancylostoma duodenale on white background. — Stock Photo
    Digital illustration of parasitic hookworms Ancylostoma duodenale on white background.
    Parasitic Cylindromyia fly on a dried wild flower head. — Stock Photo
    Parasitic Cylindromyia fly on a dried wild flower head.
    Adult Bluebottle fly — Stock Photo
    Adult Bluebottle fly
    Dog silhouette with red colored large intestine on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored large intestine on black background, digital illustration.
    Robber fly sitting on wildflower outdoors. — Stock Photo
    Robber fly sitting on wildflower outdoors.
    Close-up of dragonfly perched on dried plant outdoors. — Stock Photo
    Close-up of dragonfly perched on dried plant outdoors.
    Fly with dew drops — Stock Photo
    Fly with dew drops
    Thistle bud weevil on common thistle flower. — Stock Photo
    Thistle bud weevil on common thistle flower.
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    Frog crab (Ranina ranina), X-ray. — Stock Photo
    Frog crab (Ranina ranina), X-ray.
    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.
    Lynx spider sitting on wild plant leaf. — Stock Photo
    Lynx spider sitting on wild plant leaf.
    Caterpillar crawling on yellow foxtail grass. — Stock Photo
    Caterpillar crawling on yellow foxtail grass.
    Naegleria brain-eating amoeba forms, digital illustration — Stock Photo
    Naegleria brain-eating amoeba forms, digital illustration
    Dog anatomy with musculature and internal organs, digital illustration. — Stock Photo
    Dog anatomy with musculature and internal organs, 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
    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.
    Close-up of bee fly on rose rhapsody flower. — Stock Photo
    Close-up of bee fly on rose rhapsody flower.
    Arteries in transparent dog body, cropped, anatomical computer illustration. — Stock Photo
    Arteries in transparent dog body, cropped, anatomical computer illustration.
    Illustration of giardia parasite on blue background. — Stock Photo
    Illustration of giardia parasite on blue background.
    Structure of dog nervous system, cropped, computer illustration. — Stock Photo
    Structure of dog nervous system, cropped, computer illustration.
    Crab, X-ray, radiology scan — Stock Photo
    Crab, X-ray, radiology scan
    Babesia parasites inside red blood cell, computer illustration — Stock Photo
    Babesia parasites inside red blood cell, computer illustration
    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
    Sweat bee sitting at top of grass seedhead. — Stock Photo
    Sweat bee sitting at top of grass seedhead.
    Dog silhouette with visible skeleton on blue background, digital illustration. — Stock Photo
    Dog silhouette with visible skeleton on blue background, digital illustration.
    Green colored dust mite, digital illustration. — Stock Photo
    Green colored dust mite, digital illustration.
    Close-up of halictid bee sitting on wild plant. — Stock Photo
    Close-up of halictid bee sitting on wild plant.
    Horse skeleton, realistic 3d rendering. — Stock Photo
    Horse skeleton, realistic 3d rendering.
    Close-up of green shield bug on spreading hedgeparsley wild plant. — Stock Photo
    Close-up of green shield bug on spreading hedgeparsley wild plant.
    Dog silhouette with visible musculature on white background, digital illustration. — Stock Photo
    Dog silhouette with visible musculature on white background, digital illustration.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Dorsal detail from six spot burnet moth on wild plant. — Stock Photo
    Dorsal detail from six spot burnet moth on wild plant.
    Illustration of schistosoma blood fluke flatworm on black background. — Stock Photo
    Illustration of schistosoma blood fluke flatworm on black background.
    Echinococcus granulosus hydatid cyst, computer illustration — Stock Photo
    Echinococcus granulosus hydatid cyst, computer illustration
    Open winged silkmoth perched on branch. — Stock Photo
    Open winged silkmoth perched on branch.
    Egg of a parasitic worm Trichuris trichiura, computer illustration — Stock Photo
    Egg of a parasitic worm Trichuris trichiura, computer illustration
    Green eyed robberfly perched on white wildflower. — Stock Photo
    Green eyed robberfly perched on white wildflower.
    Scabies mite or Sarcoptes scabei — Stock Photo
    Scabies mite or Sarcoptes scabei
    Veterinarian examining cat — Stock Photo
    Veterinarian examining cat
    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
    Scabies mite or Sarcoptes scabei — Stock Photo
    Scabies mite or Sarcoptes scabei
    Close-up of longhorned bee on hedgerow cranesbill flower in meadow. — Stock Photo
    Close-up of longhorned bee on hedgerow cranesbill flower in meadow.
    Golden carpenter ants (Camponotus sericeiventris). These are soldier ants. Carpenter ants are large ants that prefer dead, damp wood in which to build nests. C. sericeiventris is found in Central and South America, from Mexico to Argentina. — Stock Photo
    Golden carpenter ants (Camponotus sericeiventris). These are soldier ants. Carpenter ants are large ants that prefer dead, damp wood in which to build nests. C. sericeiventris is found in Central and South America, from Mexico to Argentina.
    Wood ant worker — Stock Photo
    Wood ant worker
    Close-up of camouflaged land snail in hibernation on dried leaf. — Stock Photo
    Close-up of camouflaged land snail in hibernation on dried leaf.
    Sheetweb spider sitting on grass seed head. — Stock Photo
    Sheetweb spider sitting on grass seed head.
    Veterinarian giving dog physical examination — Stock Photo
    Veterinarian giving dog physical examination
    Pegomya bicolor fly trapped by frozen dew drop at tip of grass blade. — Stock Photo
    Pegomya bicolor fly trapped by frozen dew drop at tip of grass blade.
    Structure of dog lymphatic system with lymph vessels, cropped, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, cropped, digital illustration.
    Female crab spider guarding nest outdoors. — Stock Photo
    Female crab spider guarding nest outdoors.