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    Hydatid disease in liver, cystic echinococcosis, Computer illustration — Stock Photo
    Hydatid disease in liver, cystic echinococcosis, Computer illustration
    Close-up of flower crab spider in hunting position on wildflower. — Stock Photo
    Close-up of flower crab spider in hunting position on wildflower.
    Hand holding a small plastic honeycombe — Stock Photo
    Hand holding a small plastic honeycombe
    Green and purple T-bar nudibranch — Stock Photo
    Green and purple T-bar nudibranch
    Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species — Stock Photo
    Diatoms. Coloured scanning electron micrograph (SEM) of Campylodiscus species diatoms. The diatoms are a group of photosynthetic, single-celled algae containing about 100, 000 species
    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
    A Red-Spot Comb Jelly (Eurhamphaea vexilligera) passing by during a blackwater dive off the Kona coast, the Big Island; Island of Hawaii, Hawaii, United States of America — Stock Photo
    A Red-Spot Comb Jelly (Eurhamphaea vexilligera) passing by during a blackwater dive off the Kona coast, the Big Island; Island of Hawaii, Hawaii, United States of America
    Shell of unidentified sea snail. — Stock Photo
    Shell of unidentified sea snail.
    Close-up of marbled skipper moth on dried wildflower. — Stock Photo
    Close-up of marbled skipper moth on dried wildflower.
    Crown-of-thorns starfish on corals in Indonesia — Stock Photo
    Crown-of-thorns starfish on corals in Indonesia
    An extinct marine invertebrate Morocco. Existed during the Cretaceous period. During fossilization the shell was replaced by an iron compound. — Stock Photo
    An extinct marine invertebrate Morocco. Existed during the Cretaceous period. During fossilization the shell was replaced by an iron compound.
    Dead bluebottle fly — Stock Photo
    Dead bluebottle fly
    Close-up of diamondback moth cocoon on wild plant stem. — Stock Photo
    Close-up of diamondback moth cocoon on wild plant 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.
    Large red gorgonian sea fan — Stock Photo
    Large red gorgonian sea fan
    Soft corals and fish on reef — Stock Photo
    Soft corals and fish on reef
    Colorful chocolate chip sea star — Stock Photo
    Colorful chocolate chip sea star
    Close-up of bee fly hanging on wildflower stem. — Stock Photo
    Close-up of bee fly hanging on wildflower stem.
    Parasitic head louse on human hair — Stock Photo
    Parasitic head louse on human hair
    Colorful tunicates with coral polyps — Stock Photo
    Colorful tunicates with coral polyps
    Girl holding a glass jar with a butterfly — Stock Photo
    Girl holding a glass jar with a butterfly
    Close-up of ladybug larva in pupa stage on stem. — Stock Photo
    Close-up of ladybug larva in pupa stage on stem.
    Male praying mantis eating — Stock Photo
    Male praying mantis eating
    Caterpillar larva on vine — Stock Photo
    Caterpillar larva on vine
    Young girl with flowers — Stock Photo
    Young girl with flowers
    Surrounded by patches of Rice Coral (Montipora capitata), a Red Slate Pencil Urchin (Heterocentrotus mamillatus) and a Needle-spined (Urchin Echinostrephus aciculatus) rest on Molokini Backwall which is located offshore of Maui, Hawaii, USA; Molokini — Stock Photo
    Surrounded by patches of Rice Coral (Montipora capitata), a Red Slate Pencil Urchin (Heterocentrotus mamillatus) and a Needle-spined (Urchin Echinostrephus aciculatus) rest on Molokini Backwall which is located offshore of Maui, Hawaii, USA; Molokini
    Egg of a parasitic worm Trichuris trichiura, computer illustration — Stock Photo
    Egg of a parasitic worm Trichuris trichiura, computer illustration
    Corals on reef in Komodo National Park — Stock Photo
    Corals on reef in Komodo National Park
    Sea star clinging to reef — Stock Photo
    Sea star clinging to reef
    Beekeeper during work — Stock Photo
    Beekeeper during work
    Close up of the translucent chrysalis of a monarch butterfly. — Stock Photo
    Close up of the translucent chrysalis of a monarch butterfly.
    Adult dust mite — Stock Photo
    Adult dust mite
    Black-margined nudibranch on white — Stock Photo
    Black-margined nudibranch on white
    Giardia lamblia single-celled protozoan parasite in human duodenum, digital artwork. — Stock Photo
    Giardia lamblia single-celled protozoan parasite in human duodenum, digital artwork.
    Ocellate octopus on rocky bottom — Stock Photo
    Ocellate octopus on rocky bottom
    Tray of fried grasshoppers and larva — Stock Photo
    Tray of fried grasshoppers and larva
    Chef preparing a crab. — Stock Photo
    Chef preparing a crab.
    Mantis with insect prey standing on wooden branch — Stock Photo
    Mantis with insect prey standing on wooden branch
    Close-up of metallic green bottle fly perched on dried wild plant. — Stock Photo
    Close-up of metallic green bottle fly perched on dried wild plant.
    Phyllidia coelestis nudibranch — Stock Photo
    Phyllidia coelestis nudibranch
    Lyme disease tick and close-up of Borrelia burgdorferi bacterium, digital illustration. — Stock Photo
    Lyme disease tick and close-up of Borrelia burgdorferi bacterium, digital illustration.
    Close-up of wasp mimicking conopid fly on wild plant. — Stock Photo
    Close-up of wasp mimicking conopid fly on wild plant.
    Close-up of exotic moth perched on leaf in tropical forest. — Stock Photo
    Close-up of exotic moth perched on leaf in tropical forest.
    Bees working on a honeycombe — Stock Photo
    Bees working on a honeycombe
    Close-up of head and antennas of honey bee. — Stock Photo
    Close-up of head and antennas of honey bee.
    Sea fans seascape — Stock Photo
    Sea fans seascape
    Soft coral and sea fan — Stock Photo
    Soft coral and sea fan
    Boy examining a butterfly — Stock Photo
    Boy examining a butterfly
    German cockroach head with antennas, detailed close-up. — Stock Photo
    German cockroach head with antennas, detailed close-up.
    Painted-wing tachinid fly (Ectophasia sp.) sleeping on a wild flower head. — Stock Photo
    Painted-wing tachinid fly (Ectophasia sp.) sleeping on a wild flower head.
    Ancient ammonite animal on white background, computer illustration. — Stock Photo
    Ancient ammonite animal on white background, computer illustration.
    France, Les Moutiers-en-Retz, 44, barnacles hanging on a beacon stranded on the beach after a storm. — Stock Photo
    France, Les Moutiers-en-Retz, 44, barnacles hanging on a beacon stranded on the beach after a storm.
    Loch Chromodoris nudibranch closeup shot — Stock Photo
    Loch Chromodoris nudibranch closeup shot
    Blood sucking common Bedbug — Stock Photo
    Blood sucking common Bedbug
    Damselfly sitting on wood twig, close-up. — Stock Photo
    Damselfly sitting on wood twig, close-up.
    Wonderpus octopus on seabed — Stock Photo
    Wonderpus octopus on seabed
    Close up of Weevil crawling on the ground — Stock Photo
    Close up of Weevil crawling on the ground
    Head louse on white background, digital illustration. — Stock Photo
    Head louse on white background, digital illustration.
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    Close-up of noctuid moth on wild plant stem. — Stock Photo
    Close-up of noctuid moth on wild plant stem.