Lucas Bustamante / Anthony's poison-frog (Epipedobates anthonyi) seen through hole in leaf. Buenaventura Reserve, El Oro, Ecuador.

Krista Schlyer / Hooded pitcher plant (Sarracenia minor) Green Swamp, North Carolina, USA. June.

Alex Hyde / Spider hunting wasp (Pompilidae) Maliau Basin, Sabah, Borneo.

Stephen Dalton / Close up of leaf veins showing 3D structure, UK.

Robert Thompson / Black veined white butterfly (Aporia crataegi) on grass, Gavarnie-Gedre, Pyrenees National Park, France, June.

Adrian Davies / Trail left in a Bramble leaf by the larvae of a Pygmy eyecap moth (Stigmella aurella), scanned on a flatbed scanner, Surrey, England, UK.

Adrian Davies / Monkshood (Aconitum), Surrey, England, UK, June.

Edwin Giesbers / Common tree frog (Hyla arborea) silhouette viewed through leaf, the Netherlands

Stephen Dalton / Cucumber spider (Araniella cucurbitina) in its web, UK, Araneidae

Pete Oxford / Leaf detail, Mindo cloud forest, Ecuador

Heidi & Hans-Juergen Koch / Glass Frog (Cochranella antisthenesi) transparent skin shows body filled with eggs, very rare and fragile frog, native to Central and South America

Ernie Janes / Black poplar (Populus nigra) leaf skeleton macro closeup