Roland Seitre / Sloth Moth (Cryptoses choloepi) against sloth fur. This moth lives in the sloth fur until the animal defecates, when it lays eggs in the faeces. Aviarios del Caribe, Cahuita, Costa Rica.

Bernard Castelein / African swallowtail butterfly (Papilio dardanus) at rest on leaves, Jozani Chwaka Bay NP, Zanzibar, Tanzania

Tim Laman / Archduke Butterfly (Lexius sp.) female feeding on rotting fig fruits on the ground in the rainforest. Gunung Palung National Park, Borneo, Indonesia

Tim Laman / Archduke Butterfly (Lexius sp.) female feeding on rotting fig fruits on the ground in the rainforest. Gunung Palung National Park, Borneo, Indonesia

Tim Laman / Archduke Butterfly (Lexius sp.) female feeding on rotting fig fruits on the ground in the rainforest. Gunung Palung National Park, Borneo, Indonesia

Shattil & Rozinski / Ruddy copper butterfly {Lycaena rubidus} on flower on alpine tundra, Rocky Mountain NP, Colorado, USA