Mark Bowler / Peruvian red uakari monkey (Cacajao calvus ucayalii) feeding in rainforest on aguaje palm fruits (Mauritia flexuosa) Yavari River, Peru, wild, vulnerable species

Ingo Arndt / Tree snail (Amphidromus spec.) Indonesia

Ingo Arndt / Egg of Monarch butterfly (Danaus plexippus) on the underside of Milkweed leaf (Asclepias spec) USA

Ingo Arndt / Diatom (Thalassiosira spec.) 0.1 mm, Weddell Sea, Antarctica

Solvin Zankl / Centipede (Lithobius spec.) feeding on Longhorn beetle larva (Rhagium sycophanta) on oak tree. Tunhem, Sweden, August.

Paul Hobson / Lime spec pug moth (Eupithecia centaureata) Sheffield, England, UK, July.

Paul Hobson / Lime spec pug moth (Eupithecia centaureata) in leaf litter, Sheffield, England, UK, July.

Dietmar Nill / Blue Butterfly (Polyommatus spec) on green vegetation, Bulgaria

PREMAPHOTOS / Moth (Rolepa spec nova) destroying its symmetrical appearance by bending its body to one side and resembling a dead leaf, in rainforest, Brazil

Roman Willi / Stick insect (Calynda spec.) clinging on, upside down, on a small branch a night, Osa Peninsula, Costa Rica.

Roman Willi / Female jumping spider (Colonus spec.) eating a horse fly (Tabanidae sp.), Osa Peninsula, Costa Rica, December.