832-381230 - Eye, Southern right whale (Eubalaena australis), skin growths with Barnacles (Balanidae) and whale louses (Cyamus), Valdes Peninsula, Patagonia, Argentina, South America

1116-39714 - These two parasitic mollusks, Thyca crystallina, are growing on the host starfish, Linckia laevigata. This parasitic shell only attaches to this species of starfish, into which it burrows and sucks up nutrients, Philippines

1116-39719 - A Slender Spongegoby (Phyllogobius platycephalops) and two different species of crabs. Attached to the goby are several parasites with egg cases, that will likely prove fatal over time. Many species live on the convuluted surface of this sponge, Philippin

1116-39735 - The strings hanging off the dorsal fin of this Great White Shark (Carcharodon carcharias) are parasitic copepods. Photographed just breaking the surface off Guadalupe Island, Mexico

911-10389 - A juvenile Arctic Skua (Stercorarius parasiticus) on the coast in Northumberland, UK

983-624 - humpback whale, Megaptera novaeangliae, spyhopping at sunset, note parasitic acorn barnacles, Cornula diaderma, and many scars left by them, Hawaii, USA, Pacific Ocean

869-5172 - striped triplefin triplefin with parasitic crustacean on back camouflaged on sponge underwater Komodo Island Indonesia Indian Ocean Asia (Helcogramma striata)

1112-1220 - Adult parasitic (Arctic) skua (Stercorarius parasiticus) taking off at Monacobreen, Spitsbergen, Svalbard, Norway, Scandinavia, Europe

1001-250 - Parasitic wasp, North West Bulgaria, EuropeOrder Hymenoptera

989-241 - Mistletoe berries (Viscum album) on female plant growing in an apple tree, Somerset Levels, England, United Kingdom, Europe

983-453 - Humpback whale (Megaptera novaeangliae) with parasitic acorn barnacles (Cornula diaderma), spyhopping, Hawaii, United States of America, Pacific

983-492 - Humpback whale (Megaptera novaeangliae) with parasitic acorn barnacles (Cornula diaderma), Hawaii, United States of America, Pacific

983-487 - Humpback whale (Megaptera novaeangliae) with parasitic acorn barnacles (Cornula diaderma), Hawaii, United States of America, Pacific

983-449 - Humpback whale (Megaptera novaeangliae) with parasitic acorn barnacles (Cornula diaderma), Hawaii, United States of America, Pacific

983-466 - Humpback whale (Megaptera novaeangliae) with parasitic acorn barnacles (Cornula diaderma), spyhopping, Hawaii, United States of America, Pacific

908-75 - Batfish (Species unknown) with fish louse. Wakatobi, Onemobaa Island, Indonesia Restricted resolution (Please contact us). (RR)

983-316 - humpback whale, Megaptera novaeangliae, with parasitic acorn barnacles attached under chin, Cornula diaderma, Hawaii, USA, Pacific Ocean

983-110 - shortfin mako shark, Isurus oxyrinchus, with parasitic copepods, very aggressive and the fastest swimmer of all shark species, San Diego, California, USA, Pacific Ocean

983-155 - shortfin mako shark, Isurus oxyrinchus, with parasitic copepods, very aggressive and the fastest swimmer of all shark species, off San Diego, California, East Pacific Ocean

983-315 - humpback whale, Megaptera novaeangliae, with parasitic acorn barnacles attached under chin, Cornula diaderma, Hawaii, USA, Pacific Ocean

983-121 - humpback whale, Megaptera novaeangliae, with parasitic acorn barnacles attached under chin, Cornula diaderma, on migratory route, Pacific Ocean

983-109 - shortfin mako shark, Isurus oxyrinchus, very aggressive and the fastest swimmer of all shark species, San Diego, California, USA, Pacific Ocean

983-120 - humpback whale, Megaptera novaeangliae, with parasitic acorn barnacles attached under chin, Cornula diaderma, on migratory route, Pacific Ocean

983-298 - shortfin mako shark, Isurus oxyrinchus, with parasitic copepods, very aggressive and the fastest swimmer of all shark species, San Diego, California, USA, Pacific Ocean

983-89 - humpback whale, Megaptera novaeangliae, spyhopping, large adult female showing well-developed parasitic acorn barnacles attached under chin, Cornula diaderma, Hawaii, USA, Pacific Ocean

979-432 - California gray whale (Eschrichtius robustus) calf surfacing in the calm waters of Magdalena Bay, Baja California Sur, Mexico

1004-77 - Devonshire Cup Coral (Caryophyllia smithii) with Parasitic Barnacles Boscia anglica, Sark, Channel Islands

979-435 - Adult California gray whale (Eschrichtius robustus) surfacing (note barnacles and whale lice) in the calm waters of Magdalena Bay, Baja California Sur, Mexico.

979-2068 - Three species of barnacles, Coronula diadema, Cryptolepas rhachianecti, Conchoderma testudini

911-273 - Tourists being attacked by mosquitos in Camp Victor on Greenland, Polar Regions

911-274 - Tourists being attacked by mosquitos in Camp Victor on Greenland, Polar Regions

989-3 - Parasite fly or Tachinid fly (Cylindromyia bicolor) feeding on Wild angelica (Angelica sylvestris) umbel flowers, Corsica, France. MORE INFO: Parasite fly or Tachinid fly family Tachinidae, plant family Apiaceae.

987-568 - Rhagium mordax, Estonia

940-2 - Insect damage to sandpaper fig leaf (Ficus coronata), Couchy Creek Nature Reserve, New South Wales, Australia, Pacific

940-1 - Australian land leech (Gnatbobdellida libbata) feeding on dog's paw, Hopkins Creek, New South Wales, Australia, Pacific

83-12404 - A large male Black Ctenosaur (Iguana negra) with parasitic ticks, a lizard species endemic to Central and South America, Nosara, Nicoya Peninsula, Guanacaste Province, Costa Rica, Central America

817-206843 - Leaf-cutter ants, order Hymenoptera, family Formicidae, carrying leaf fragments back to their nest The small ant riding on the leaf is called a Minim, which protects the worker carrying the leaf from aerial attacks of parasitic flies of the family P

817-201651 - Ichneumon wasp (Megarhyssa spp) laying an egg through its ovipositor into a pigeon horntail wasp (Tremex columba) larval tunnel on a dead American elm tree (Ulmus americana)

238-4027 - Betel nut, reported to be anti-parasitic, laxative and to promote urination, also proven to be a stimulant as it increases heart rate and blood pressure, India, Asia