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    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
    Ground beetle in black and purple, detailed portrait. — Stock Photo
    Ground beetle in black and purple, detailed portrait.
    Nudibranch feeding on algae — Stock Photo
    Nudibranch feeding on algae
    Close-up of brown jewel beetle sitting on branch. — Stock Photo
    Close-up of brown jewel beetle sitting on branch.
    Close-up of ladybug larva in pupa stage on stem. — Stock Photo
    Close-up of ladybug larva in pupa stage on stem.
    House dust mite — Stock Photo
    House dust mite
    Water flea (Polyphemus pediculus), coloured scanning electron micrograph (SEM). — Stock Photo
    Water flea (Polyphemus pediculus), coloured scanning electron micrograph (SEM).
    Close-up of small ant carrying heavy object in nature — Stock Photo
    Close-up of small ant carrying heavy object in nature
    Soft coral colonies growing on reef — Stock Photo
    Soft coral colonies growing on reef
    Soft coral colonies growing on reef — Stock Photo
    Soft coral colonies growing on reef
    Soft coral colonies growing on reef — Stock Photo
    Soft coral colonies growing on reef
    Pair of colorful tunicates on reef in Lembeh Strait, Indonesia — Stock Photo
    Pair of colorful tunicates on reef in Lembeh Strait, Indonesia
    Colorful nudibranch on coral — Stock Photo
    Colorful nudibranch on coral
    Chef preparing a crab. — Stock Photo
    Chef preparing a crab.
    Hands of little boy with insect — Stock Photo
    Hands of little boy with insect
    Red and white chromodoris tinctoria nudibranch — Stock Photo
    Red and white chromodoris tinctoria nudibranch
    Digital illustration showing close-up of ciliate protozoan Balantidium coli intestinal parasite causing balantidiasis ulcer in human intestinal tract. — Stock Photo
    Digital illustration showing close-up of ciliate protozoan Balantidium coli intestinal parasite causing balantidiasis ulcer in human intestinal tract.
    Robber fly sitting on wildflower outdoors. — Stock Photo
    Robber fly sitting on wildflower outdoors.
    West Indian starfish on sandy seafloor — Stock Photo
    West Indian starfish on sandy seafloor
    Banana nudibranch crawling from egg ribbon — Stock Photo
    Banana nudibranch crawling from egg ribbon
    Echinococcosis multilocularis hydatid cyst, computer illustration — Stock Photo
    Echinococcosis multilocularis hydatid cyst, computer illustration
    Mushroom coral closeup shot — Stock Photo
    Mushroom coral closeup shot
    Hand holding a small plastic honeycombe — Stock Photo
    Hand holding a small plastic honeycombe
    Front view of a Tufted Spiny Lobster (Panulirus penicillatus) showing its tufted legs that was photographed while scuba diving the Kona Coast; Island of Hawaii, Hawaii, United States of America — Stock Photo
    Front view of a Tufted Spiny Lobster (Panulirus penicillatus) showing its tufted legs that was photographed while scuba diving the Kona Coast; Island of Hawaii, Hawaii, United States of America
    Digital illustration of nit egg of human head louse attached to human hair. — Stock Photo
    Digital illustration of nit egg of human head louse attached to human hair.
    Nudibranch feeding on reef — Stock Photo
    Nudibranch feeding on reef
    Black and white spotted nudibranch — Stock Photo
    Black and white spotted nudibranch
    Blue goby with blind shrimp — Stock Photo
    Blue goby with blind shrimp
    Divers swimming over sea fans — Stock Photo
    Divers swimming over sea fans
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Close-up of nursery web spider in hunting position on leaves. — Stock Photo
    Close-up of nursery web spider in hunting position on leaves.
    Close-up of green shield bug on spreading hedgeparsley wild plant. — Stock Photo
    Close-up of green shield bug on spreading hedgeparsley wild plant.
    Eyes of coconut octopus closeup shot — Stock Photo
    Eyes of coconut octopus closeup shot
    Detailed close-up of earwig bug pincers, nature macrophotography. — Stock Photo
    Detailed close-up of earwig bug pincers, nature macrophotography.
    Closeup Bug Molting Exoskeleton — Stock Photo
    Closeup Bug Molting Exoskeleton
    Parasitic head louse on human hair — Stock Photo
    Parasitic head louse on human hair
    Risbecia tryoni nudibranch in Beqa Lagoon — Stock Photo
    Risbecia tryoni nudibranch in Beqa Lagoon
    Chromodoris dianae sea slug — Stock Photo
    Chromodoris dianae sea slug
    Nembrotha cristata nudibranch — Stock Photo
    Nembrotha cristata nudibranch
    Close-up of harlequin ladybird sitting on grass spike. — Stock Photo
    Close-up of harlequin ladybird sitting on grass spike.
    Pair of colorful flatworms — Stock Photo
    Pair of colorful flatworms
    Close-up of bee fly hanging on wildflower stem. — Stock Photo
    Close-up of bee fly hanging on wildflower stem.
    Damselfly sitting on wood twig, close-up. — Stock Photo
    Damselfly sitting on wood twig, close-up.
    Blister beetle eating on a milkweed plant in a garden — Stock Photo
    Blister beetle eating on a milkweed plant in a garden
    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
    Orange soft coral and sea whip — Stock Photo
    Orange soft coral and sea whip
    Hypselodoris bullockii with bright red gills — Stock Photo
    Hypselodoris bullockii with bright red gills
    Caddis on a branch in the Southeast — Stock Photo
    Caddis on a branch in the Southeast
    Blue tunicate growing on reef — Stock Photo
    Blue tunicate growing on reef
    Digital illustration of nit egg of human head louse attached to human hair. — Stock Photo
    Digital illustration of nit egg of human head louse attached to human hair.
    Close-up of German cockroach insect head, detailed macrophotography. — Stock Photo
    Close-up of German cockroach insect head, detailed macrophotography.
    Eastern kingbird perched on barbed wire and catching grasshopper. — Stock Photo
    Eastern kingbird perched on barbed wire and catching grasshopper.
    Large red gorgonian sea fan — Stock Photo
    Large red gorgonian sea fan
    A child holds a live frog. — Stock Photo
    A child holds a live frog.
    Digital illustration of nit egg of human head louse attached to human hair. — Stock Photo
    Digital illustration of nit egg of human head louse attached to human hair.
    Black meadowhawk dragonfly landing on plant, close-up. — Stock Photo
    Black meadowhawk dragonfly landing on plant, close-up.
    Chromodoris kuniei nudibranch — Stock Photo
    Chromodoris kuniei nudibranch
    Colorful tunicate on reef in Lembeh Strait, Indonesia — Stock Photo
    Colorful tunicate on reef in Lembeh Strait, Indonesia
    Mating Nembrotha chamberlaini nudibranchs — Stock Photo
    Mating Nembrotha chamberlaini nudibranchs
    Ancient ammonite animal on white background, computer illustration. — Stock Photo
    Ancient ammonite animal on white background, computer illustration.