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    Scale insects. Coloured scanning electron micrograph (SEM) of scale insects (superfamily Coccoidea) on a leaf. This pest feeds on the plant's sap. It secretes a powdery wax coating that protects it against pesticides and predators — Stock Photo
    Scale insects. Coloured scanning electron micrograph (SEM) of scale insects (superfamily Coccoidea) on a leaf. This pest feeds on the plant's sap. It secretes a powdery wax coating that protects it against pesticides and predators
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    Campopleginae pupa covered by dew drops on stem. — Stock Photo
    Campopleginae pupa covered by dew drops on stem.
    House dust mites — Stock Photo
    House dust mites
    Adult Pubic louse on hair — Stock Photo
    Adult Pubic louse on hair
    Thistle bud weevil sitting on plant stem. — Stock Photo
    Thistle bud weevil sitting on plant stem.
    White spotted jellyfish against blue background. — Stock Photo
    White spotted jellyfish against blue background.
    Anatomy of dog colon in transparent body, computer illustration. — Stock Photo
    Anatomy of dog colon in transparent body, computer illustration.
    True dung beetle profile portrait. — Stock Photo
    True dung beetle profile portrait.
    Horse skeleton model with detailed zygomaticus brachii muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed zygomaticus brachii muscle, digital illustration.
    Antarctic fur seal (Arctocephalus gazella) on rocky coast — Stock Photo
    Antarctic fur seal (Arctocephalus gazella) on rocky coast
    Dog anatomy with visible organs on white background, digital illustration. — Stock Photo
    Dog anatomy with visible organs on white background, digital illustration.
    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.
    Close-up of mating six spot burnet moths on common thistle flower. — Stock Photo
    Close-up of mating six spot burnet moths on common thistle flower.
    Horse skeleton model with detailed Triceps brachii muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Triceps brachii muscle, digital illustration.
    Group of Trichomonas hominis protozoan parasites, digital illustration. — Stock Photo
    Group of Trichomonas hominis protozoan parasites, digital illustration.
    Dog silhouette with red colored pancreas on black background, digital illustration. — Stock Photo
    Dog silhouette with red colored pancreas on black background, digital illustration.
    Digger bee (Habropoda sp.) sleeping on a branch. Its turquoise compound eyes are visible here. — Stock Photo
    Digger bee (Habropoda sp.) sleeping on a branch. Its turquoise compound eyes are visible here.
    Close-up of hummingbird hawkmoth on lichens covered branch. — Stock Photo
    Close-up of hummingbird hawkmoth on lichens covered branch.
    Horse anatomy with visible internal organs on white background, computer illustration. — Stock Photo
    Horse anatomy with visible internal organs on white background, computer illustration.
    Dog silhouette with visible skeleton on blue background, digital illustration. — Stock Photo
    Dog silhouette with visible skeleton on blue background, digital 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
    Afro-caribbean girl using binoculars in park. — Stock Photo
    Afro-caribbean girl using binoculars in park.
    Samango monkey sitting in tree of tropical African forest. — Stock Photo
    Samango monkey sitting in tree of tropical African forest.
    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.
    Tapeworms infestation in human intestine, digital illustration. — Stock Photo
    Tapeworms infestation in human intestine, digital illustration.
    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.
    Fly larva head anatomy — Stock Photo
    Fly larva head anatomy
    Arteries in transparent dog body, anatomical computer illustration. — Stock Photo
    Arteries in transparent dog body, anatomical computer illustration.
    Caenorhabditis elegans parasite worm, colored scanning electron micrograph. — Stock Photo
    Caenorhabditis elegans parasite worm, colored scanning electron micrograph.
    Horse skeleton model with detailed Supraspinatus muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Supraspinatus muscle, digital illustration.
    Digital illustration of female lyme disease ticks on black background — Stock Photo
    Digital illustration of female lyme disease ticks on black background
    Parasitic louse on human head skin, digital illustration. — Stock Photo
    Parasitic louse on human head skin, digital illustration.
    Close-up of dragonfly perched on dried plant outdoors. — Stock Photo
    Close-up of dragonfly perched on dried plant outdoors.
    Hydatid disease in liver, cystic echinococcosis, Computer illustration — Stock Photo
    Hydatid disease in liver, cystic echinococcosis, Computer illustration
    Horse skeleton in transparent silhouette on black background, computer illustration. — Stock Photo
    Horse skeleton in transparent silhouette on black background, computer illustration.
    House fly Maggot — Stock Photo
    House fly Maggot
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Close-up of dagger fly on plantago lanceolata plant. — Stock Photo
    Close-up of dagger fly on plantago lanceolata plant.
    Regal blue tang fish with beautiful pattern swimming in water. — Stock Photo
    Regal blue tang fish with beautiful pattern swimming in water.
    Horse skeleton model with detailed Superficial digital flexor muscle, digital illustration. — Stock Photo
    Horse skeleton model with detailed Superficial digital flexor muscle, digital illustration.
    Hydatid disease in liver, cystic echinococcosis, Computer illustration — Stock Photo
    Hydatid disease in liver, cystic echinococcosis, Computer illustration
    Microscopic dust mites colony — Stock Photo
    Microscopic dust mites colony
    Close-up of marmalade hoverfly perched on thin branch. — Stock Photo
    Close-up of marmalade hoverfly perched on thin branch.
    Robberfly insect covered by early morning dew. — Stock Photo
    Robberfly insect covered by early morning dew.
    Anatomy of dog small intestine in transparent body, computer illustration. — Stock Photo
    Anatomy of dog small intestine in transparent body, computer illustration.
    Spotted eye hoverfly in detailed portrait shot. — Stock Photo
    Spotted eye hoverfly in detailed portrait shot.
    Dog silhouette with visible musculature on white background, digital illustration. — Stock Photo
    Dog silhouette with visible musculature on white background, digital illustration.
    Group of Trichomonas hominis protozoan parasites, digital illustration. — Stock Photo
    Group of Trichomonas hominis protozoan parasites, digital illustration.
    Structure of dog nervous system, computer illustration. — Stock Photo
    Structure of dog nervous system, computer illustration.
    Close-up of ladybug larva in pupa stage on stem. — Stock Photo
    Close-up of ladybug larva in pupa stage on stem.
    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.
    Echinococcosis multilocularis hydatid cyst, computer illustration — Stock Photo
    Echinococcosis multilocularis hydatid cyst, computer illustration
    Horse skeleton, realistic 3d rendering. — Stock Photo
    Horse skeleton, realistic 3d rendering.
    Close-up of devils coach horse beetle with large mandibles. — Stock Photo
    Close-up of devils coach horse beetle with large mandibles.
    Dust mite parasite, microscopic digital illustration. — Stock Photo
    Dust mite parasite, microscopic digital illustration.
    Full dog musculature with internal organs, digital illustration. — Stock Photo
    Full dog musculature with internal organs, digital illustration.
    Delicate (Mythimna vitellina) moth larva on a wild plant. — Stock Photo
    Delicate (Mythimna vitellina) moth larva on a wild plant.
    Dog silhouette with visible skeleton on white background, digital illustration. — Stock Photo
    Dog silhouette with visible skeleton on white background, digital illustration.
    Adult female mosquito — Stock Photo
    Adult female mosquito