Thomas Marent / Fungus (Ophiocordycipitaceae) which parasitized and killed wasp, Tatama National Park, Colombia

David Fleetham / Slender spongegoby (Phyllogobius platycephalops) and two Crabs of different species on Sponge. Several parasites with egg cases on the side of the Goby. Philippines.

Emanuele Biggi / Peruvian Tarantula (Pamphobeteus sp.), young individual parasitized by Phoridae fly larvae, Los Amigos Biological Station, Madre de Dios, Amazonia, Peru.

Paul Bertner / Braconid Wasp (Braconidae) cocoons attached to parasitized caterpillar, Udzungwa Mountains National Park, Tanzania

Paul Bertner / Hawk Moth (Sphingidae) parasitized caterpillar, Yasuni National Park, Ecuador

Lorraine Bennery / White-legged damselfly (Platycnemis pennipes) parasitized with larva, Vosges Balloons Regional Park, France, August.

Lorraine Bennery / Spotted fritillary's caterpillar (Melitaea didyma) parasitized by a solitary wasp, La Brenne Regional Natural Park, Indre, France, June.

James Christensen / Owl Butterfly (Caligo sp) heavily parasitized caterpillar, Mindo, Ecuador

Piotr Naskrecki / Carpenter Ant (Camponotus sp) parasitized and killed by Sac Fungus (Cordyceps sp), Sipaliwini, Surinam

Piotr Naskrecki / Sac Fungus (Cordyceps sp) mycelium covering cricket that was parasitized and killed by the fungus, Sipaliwini, Surinam

Piotr Naskrecki / Solom Katydid (Salomona bispinosa) parasitized by horsehair worm, New Britain, Papua New Guinea

Piotr Naskrecki / Weevil parasitized by Gill Mushroom (Stilbella buquetii), Costa Rica