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    Ancient ammonite animal on white background, computer illustration. — Stock Photo
    Ancient ammonite animal on white background, computer illustration.
    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
    Spotted cleaner shrimp in bubble coral — Stock Photo
    Spotted cleaner shrimp in bubble coral
    Mushroom coral growing on reef — Stock Photo
    Mushroom coral growing on reef
    Caught lobsters in container — Stock Photo
    Caught lobsters in container
    Close-up of exotic moth perched on plant leaf in tropical forest. — Stock Photo
    Close-up of exotic moth perched on plant leaf in tropical forest.
    Close-up of exotic moth perched on branch in tropical forest. — Stock Photo
    Close-up of exotic moth perched on branch in tropical forest.
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans. — Stock Photo
    Three dinoflagellates (blue), coloured scanning electron micrograph (SEM). Dinoflagellates are unicellular protozoans.
    Darklined fireworm crawling on black sand — Stock Photo
    Darklined fireworm crawling on black sand
    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.
    Healthy reef-building corals on reef — Stock Photo
    Healthy reef-building corals on reef
    Goby fish on sea pen — Stock Photo
    Goby fish on sea pen
    Blood sucking common Bedbug — Stock Photo
    Blood sucking common Bedbug
    Hydatid disease in liver, cystic echinococcosis, Computer illustration — Stock Photo
    Hydatid disease in liver, cystic echinococcosis, Computer illustration
    Close-up of Brunners stone grasshopper on rock in field. — Stock Photo
    Close-up of Brunners stone grasshopper on rock in field.
    Spinning brain coral in ocean water — Stock Photo
    Spinning brain coral in ocean water
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    Crinoid and tunicates covering shallow reef — Stock Photo
    Crinoid and tunicates covering shallow reef
    Cat flea head — Stock Photo
    Cat flea head
    Risbecia tryoni nudibranch — Stock Photo
    Risbecia tryoni nudibranch
    Close-up of marmalade hoverfly perched on plant branch. — Stock Photo
    Close-up of marmalade hoverfly perched on plant branch.
    Head louse on human hair, digital illustration. — Stock Photo
    Head louse on human hair, digital illustration.
    Grandfather and children at home — Stock Photo
    Grandfather and children at home
    Coral reef in Komodo National Park — Stock Photo
    Coral reef in Komodo National Park
    Translucent shrimp crawling on bubble coral — Stock Photo
    Translucent shrimp crawling on bubble coral
    Bumblebee sitting on common thistle wildflower. — Stock Photo
    Bumblebee sitting on common thistle wildflower.
    Black meadowhawk dragonfly landing on plant, close-up. — Stock Photo
    Black meadowhawk dragonfly landing on plant, close-up.
    Close-up of common glow worm hanging on branch. — Stock Photo
    Close-up of common glow worm hanging on branch.
    Jellyfish (Pelagia noctiluca) with fish prey photographed during a blackwater scuba dive several miles offshore of a Hawaiian Island at night; Hawaii, United States of America — Stock Photo
    Jellyfish (Pelagia noctiluca) with fish prey photographed during a blackwater scuba dive several miles offshore of a Hawaiian Island at night; Hawaii, United States of America
    Girl holding a glass jar with a butterfly — Stock Photo
    Girl holding a glass jar with a butterfly
    Mating Pair Of Grasshoppers — Stock Photo
    Mating Pair Of Grasshoppers
    Blister beetle eating on a milkweed plant in a garden — Stock Photo
    Blister beetle eating on a milkweed plant in a garden
    Shieldbug beetle in dorsal view portrait. — Stock Photo
    Shieldbug beetle in dorsal view portrait.
    Coconut octopus carrying clam shell — Stock Photo
    Coconut octopus carrying clam shell
    Large Cauliflower Coral (Pocillopora Meandrina) Colony; Kona, Island Of Hawaii, Hawaii, United States Of America — Stock Photo
    Large Cauliflower Coral (Pocillopora Meandrina) Colony; Kona, Island Of Hawaii, Hawaii, United States Of America
    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
    West Indian starfish on sandy seafloor — Stock Photo
    West Indian starfish on sandy seafloor
    Close-up of leaf hopper at edge of green leaf. — Stock Photo
    Close-up of leaf hopper at edge of green leaf.
    Colorful sea anemone — Stock Photo
    Colorful sea anemone
    Pair of nudibranchs feeding on algae — Stock Photo
    Pair of nudibranchs feeding on algae
    Stable fly with large proboscis, close-up. — Stock Photo
    Stable fly with large proboscis, close-up.
    Seven-spot ladybird (Coccinella septempunctata) sleeping on a plant leaf. — Stock Photo
    Seven-spot ladybird (Coccinella septempunctata) sleeping on a plant leaf.
    Translucent Cuapetes commensal shrimp — Stock Photo
    Translucent Cuapetes commensal shrimp
    Echinococcus granulosus hydatid cyst, computer illustration — Stock Photo
    Echinococcus granulosus hydatid cyst, computer illustration
    Silk moth (Bombyx mori) head and antenna. — Stock Photo
    Silk moth (Bombyx mori) head and antenna.
    Dog tapeworm head — Stock Photo
    Dog tapeworm head
    Entomopathogenic fungus infected fly at tip of leaf. — Stock Photo
    Entomopathogenic fungus infected fly at tip of leaf.
    Boxing crab on coral in Raja Ampat — Stock Photo
    Boxing crab on coral in Raja Ampat
    Diver swimming over corals — Stock Photo
    Diver swimming over corals
    Chromodoris kuniei nudibranch — Stock Photo
    Chromodoris kuniei nudibranch
    Female copepod with eggs — Stock Photo
    Female copepod with eggs
    Parasitic Bedbug on human skin — Stock Photo
    Parasitic Bedbug on human skin
    Adult parasitic louse — Stock Photo
    Adult parasitic louse
    Closeup Of Praying Mantis — Stock Photo
    Closeup Of Praying Mantis
    Close up of Bushman holding scorpion, Botswana — Stock Photo
    Close up of Bushman holding scorpion, Botswana
    Close-up of tachinid fly perched on wild plant. — Stock Photo
    Close-up of tachinid fly perched on wild plant.
    Liver fluke Clonorchis sinensis — Stock Photo
    Liver fluke Clonorchis sinensis
    Red sabre squirrelfish in sea fans — Stock Photo
    Red sabre squirrelfish in sea fans
    Rhubarb weevil sitting on dried wildflower. — Stock Photo
    Rhubarb weevil sitting on dried wildflower.
    Thistle bud weevil sitting on common thistle stem. — Stock Photo
    Thistle bud weevil sitting on common thistle stem.