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    Close-up of leaf cutting cuckoo bee at tip of thin branch. — Stock Photo
    Close-up of leaf cutting cuckoo bee at tip of thin 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.
    Structure of dog vascular system with colorful blood vessels in transparent body, computer illustration. — Stock Photo
    Structure of dog vascular system with colorful blood vessels in transparent body, computer illustration.
    Green frog on plant stem, close-up. — Stock Photo
    Green frog on plant stem, close-up.
    Rose chafer (Cetonia aurata) on a branch. — Stock Photo
    Rose chafer (Cetonia aurata) on a branch.
    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
    Black-headed ground snake lying in twigs. — Stock Photo
    Black-headed ground snake lying in twigs.
    Dog silhouette with visible skeleton on white background, digital illustration. — Stock Photo
    Dog silhouette with visible skeleton on white background, digital illustration.
    Ground snail sticking on green wild plant. — Stock Photo
    Ground snail sticking on green wild plant.
    Sweat bee sitting at top of grass seedhead. — Stock Photo
    Sweat bee sitting at top of grass seedhead.
    Close-up of ladybug larva in pupa stage on stem. — Stock Photo
    Close-up of ladybug larva in pupa stage on stem.
    Pink colored dust mite, digital illustration. — Stock Photo
    Pink colored dust mite, digital illustration.
    Seals mating on beach — Stock Photo
    Seals mating on beach
    Horse skeleton model with detailed Sternocephalicus muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Sternocephalicus muscle, digital illustration.
    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.
    Caterpillar hairs. Coloured scanning electron micrograph (SEM) of hairs from the vapourer moth (Orgyia antiqua) caterpillar. — Stock Photo
    Caterpillar hairs. Coloured scanning electron micrograph (SEM) of hairs from the vapourer moth (Orgyia antiqua) caterpillar.
    Juvenile red fox standing on rock in wild. — Stock Photo
    Juvenile red fox standing on rock in wild.
    Trapped harlequin ladybird on yellow foxtail grass. — Stock Photo
    Trapped harlequin ladybird on yellow foxtail grass.
    Horse anatomy in low section, computer illustration. — Stock Photo
    Horse anatomy in low section, computer illustration.
    Dog silhouette with red colored genitals on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored genitals on black background, digital illustration.
    Round worms in human intestine, computer illustration. Roundworms, or nematodes, include numerous free-living and pathogenic species — Stock Photo
    Round worms in human intestine, computer illustration. Roundworms, or nematodes, include numerous free-living and pathogenic species
    Structure of dog skeleton, computer illustration. — Stock Photo
    Structure of dog skeleton, computer illustration.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Triumphant star turban (Guildfordia triumphans), X-ray. — Stock Photo
    Triumphant star turban (Guildfordia triumphans), X-ray.
    Dog anatomy with visible organs on black background, digital illustration. — Stock Photo
    Dog anatomy with visible organs on black background, digital 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.
    Structure of dog skeleton, computer illustration. — Stock Photo
    Structure of dog skeleton, computer illustration.
    Microscopic dust mites colony — Stock Photo
    Microscopic dust mites colony
    House dust mites — Stock Photo
    House dust mites
    Trichina spiralis roundworm — Stock Photo
    Trichina spiralis roundworm
    Seven-spot ladybird — Stock Photo
    Seven-spot ladybird
    Adult female mosquito — Stock Photo
    Adult female mosquito
    Water flea (Polyphemus pediculus), coloured scanning electron micrograph (SEM). — Stock Photo
    Water flea (Polyphemus pediculus), coloured scanning electron micrograph (SEM).
    Parasitic tick biting skin — Stock Photo
    Parasitic tick biting skin
    Full dog anatomy with internal organs, digital illustration. — Stock Photo
    Full dog anatomy with internal organs, digital 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
    Tiger beetle (Cylindera arenaria) on a branch. — Stock Photo
    Tiger beetle (Cylindera arenaria) on a branch.
    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.
    Tick biting skin — Stock Photo
    Tick biting skin
    Structure of dog lymphatic system with lymph vessels, digital illustration. — Stock Photo
    Structure of dog lymphatic system with lymph vessels, digital illustration.
    Horse skeleton model with detailed Trapezius muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Trapezius muscle, digital illustration.
    Lynx spider sitting on wild plant leaf. — Stock Photo
    Lynx spider sitting on wild plant leaf.
    Green eyed robberfly perched on white wildflower. — Stock Photo
    Green eyed robberfly perched on white wildflower.
    Dog anatomy with musculature and internal organs, digital illustration. — Stock Photo
    Dog anatomy with musculature and internal organs, digital illustration.
    Close-up of tiger fly at top of dried wild plant. — Stock Photo
    Close-up of tiger fly at top of dried wild plant.
    Parasitic dust mite on white background, digital illustration. — Stock Photo
    Parasitic dust mite on white background, digital illustration.
    Dog silhouette with visible skeleton on white background, digital illustration. — Stock Photo
    Dog silhouette with visible skeleton on white background, digital illustration.
    Silk moth (Bombyx mori) head and antenna. — Stock Photo
    Silk moth (Bombyx mori) head and antenna.
    Structure of dog skeleton, cropped, computer illustration. — Stock Photo
    Structure of dog skeleton, cropped, computer illustration.
    Full dog musculature with internal organs, digital illustration. — Stock Photo
    Full dog musculature with internal organs, digital illustration.
    Giardia lamblia single-celled protozoan parasite in human duodenum, digital artwork. — Stock Photo
    Giardia lamblia single-celled protozoan parasite in human duodenum, digital artwork.
    White-throated kingfisher with gecko in beak on tree branch. — Stock Photo
    White-throated kingfisher with gecko in beak on tree branch.
    Scorpion fly foot — Stock Photo
    Scorpion fly foot
    Dog silhouette with red colored spine on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored spine on black background, digital illustration.
    Colored digital illustration of parasitic dust mites. — Stock Photo
    Colored digital illustration of parasitic dust mites.
    Front view of African elephant in grass, Serengeti, Tanzania. — Stock Photo
    Front view of African elephant in grass, Serengeti, Tanzania.
    Echinococcosis multilocularis hydatid cyst, computer illustration — Stock Photo
    Echinococcosis multilocularis hydatid cyst, computer illustration
    Parasitic head louse on human hair — Stock Photo
    Parasitic head louse on human hair
    Ventral view of wood boaring beetle in wildlife — Stock Photo
    Ventral view of wood boaring beetle in wildlife
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.