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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
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Close-up of caterpillar on yellow foxtail grass in field. — Stock Photo
    Close-up of caterpillar on yellow foxtail grass in field.
    Sea star clinging to reef — Stock Photo
    Sea star clinging to reef
    Bluish white transluscent jellyfish — Stock Photo
    Bluish white transluscent jellyfish
    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
    Colony of sea whips growing on reef — Stock Photo
    Colony of sea whips growing on reef
    Chromodoris kunei nudibranch carrying shrimp — Stock Photo
    Chromodoris kunei nudibranch carrying shrimp
    Close-up of fly covered by dew drops and ice crystals. — Stock Photo
    Close-up of fly covered by dew drops and ice crystals.
    Thistle bud weevil sitting on common thistle stem. — Stock Photo
    Thistle bud weevil sitting on common thistle stem.
    Shield bug head, detailed close-up. — Stock Photo
    Shield bug head, detailed close-up.
    Transparent shrimp on sea anemone — Stock Photo
    Transparent shrimp on sea anemone
    Close-up of thick-headed fly sitting on wildflower. — Stock Photo
    Close-up of thick-headed fly sitting on wildflower.
    House dust mites — Stock Photo
    House dust mites
    Cuttlefish over coral reef — Stock Photo
    Cuttlefish over coral reef
    Parasitic louse on human head skin, digital illustration. — Stock Photo
    Parasitic louse on human head skin, digital illustration.
    Mother using lice comb on daughter hair in bathroom — Stock Photo
    Mother using lice comb on daughter hair in bathroom
    Human eyelash mites — Stock Photo
    Human eyelash mites
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Commensal shrimp on brown anemone — Stock Photo
    Commensal shrimp on brown anemone
    Earthworm coloured scanning electron micrograph — Stock Photo
    Earthworm coloured scanning electron micrograph
    Ancient ammonite animal on white background, computer illustration. — Stock Photo
    Ancient ammonite animal on white background, computer illustration.
    A hummingbird sits on a branch — Stock Photo
    A hummingbird sits on a branch
    Sea nettle jellyfish in aquarium blue water — Stock Photo
    Sea nettle jellyfish in aquarium blue water
    Close-up of devils coach horse beetle with large mandibles. — Stock Photo
    Close-up of devils coach horse beetle with large mandibles.
    France, Normandy, grey schrimps on a fish market — Stock Photo
    France, Normandy, grey schrimps on a fish market
    Woolly caterpillar on the green leaf with dark background — Stock Photo
    Woolly caterpillar on the green leaf with dark background
    Close-up of wood boaring beetle portrait outdoors. — Stock Photo
    Close-up of wood boaring beetle portrait outdoors.
    Pair of colorful flatworms — Stock Photo
    Pair of colorful flatworms
    Red and white chromodoris tinctoria nudibranch — Stock Photo
    Red and white chromodoris tinctoria nudibranch
    Ant on a flower carrying a bud, Indonesia — Stock Photo
    Ant on a flower carrying a bud, Indonesia
    Corals on reef in Komodo National Park — Stock Photo
    Corals on reef in Komodo National Park
    Parasitic Bedbug on human skin — Stock Photo
    Parasitic Bedbug on human skin
    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
    Digital illustration of Lyme disease tick parasite. — Stock Photo
    Digital illustration of Lyme disease tick parasite.
    Porcelain crab in beige soft coral — Stock Photo
    Porcelain crab in beige soft coral
    Parasitic wasp with eyes and antennas, frontal portrait. — Stock Photo
    Parasitic wasp with eyes and antennas, frontal portrait.
    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.
    Sea star in Beqa Lagoon — Stock Photo
    Sea star in Beqa Lagoon
    Shrimp in bubble coral — Stock Photo
    Shrimp in bubble coral
    Gymnodoris ceylonica nudibranch in Beqa Lagoon — Stock Photo
    Gymnodoris ceylonica nudibranch in Beqa Lagoon
    Tiny crab on orange fire coral — Stock Photo
    Tiny crab on orange fire coral
    Tortricidae moth on green plant leaf. — Stock Photo
    Tortricidae moth on green plant leaf.
    Close-up of brown jewel beetle sitting on branch. — Stock Photo
    Close-up of brown jewel beetle sitting on branch.
    Coral reef in Komodo National Park — Stock Photo
    Coral reef in Komodo National Park
    Close-up of golden bloomed grey longhorn beetle portrait. — Stock Photo
    Close-up of golden bloomed grey longhorn beetle portrait.
    Delicate tunicate in Komodo National Park — Stock Photo
    Delicate tunicate in Komodo National Park
    Close-up of dagger fly on plantago lanceolata plant. — Stock Photo
    Close-up of dagger fly on plantago lanceolata plant.
    Cuttlefish laying eggs in fire coral — Stock Photo
    Cuttlefish laying eggs in fire coral
    Fragile corals in shallow water in Raja Ampat, Indonesia — Stock Photo
    Fragile corals in shallow water in Raja Ampat, Indonesia
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Colorful tunicate skin closeup shot — Stock Photo
    Colorful tunicate skin closeup shot
    Macrophotograph of a portion of the aft wing of the 'Giant Red Winged Hopper' showing its repetitive patterns; a grasshopper (Tropidacris dux) from Peru — Stock Photo
    Macrophotograph of a portion of the aft wing of the 'Giant Red Winged Hopper' showing its repetitive patterns; a grasshopper (Tropidacris dux) from Peru
    Blue starfish clinging to reef — Stock Photo
    Blue starfish clinging to reef
    Sunlight through table coral — Stock Photo
    Sunlight through table coral
    Beekeeper holding a metal smoker — Stock Photo
    Beekeeper holding a metal smoker
    A tentaculate ctenophore, also known as comb jelly or sea gooseberry (Pleurobrachia sp.), opening its mouth to ingest zooplankton prey during a blackwater dive off the Kona coast, the Big island; Island of Hawaii, Hawaii, United States of America — Stock Photo
    A tentaculate ctenophore, also known as comb jelly or sea gooseberry (Pleurobrachia sp.), opening its mouth to ingest zooplankton prey during a blackwater dive off the Kona coast, the Big island; Island of Hawaii, Hawaii, United States of America
    Adult Honeybee mite — Stock Photo
    Adult Honeybee mite
    Orange white and red shrimp — Stock Photo
    Orange white and red shrimp