Theo Bosboom / Small red damselfly (Ceriagrion tenellum) close up portrait, warming up in the early morning. De Hatertse Vennen Nature Reserve, near Nijmegen, the Netherlands, July.

Theo Bosboom / Small red damselfly (Ceriagrion tenellum), warming up in the early morning, De Hatertse Vennen Nature Reserve, near Nijmegen, the Netherlands, July

Ingo Arndt / Red-eyed tree frog (Agalychnis callidryas) eye closed with semi-transparent eyelid that allows it to see its surroundings even while resting, Costa Rica.

Ingo Arndt / Red-eyed Tree Frog (Agalychnis callidryas) close- up of eye half open, the golden webbed semi-transparent eyelid allows to see its surrounding even while resting, Costa Rica.

Ingo Arndt / Close up of face of Red bald headed uakari {Cacajao calvus ucayalii} Rio Yavari, Amazonia, Peru FOR SALE IN UK ONLY

Ingo Arndt / Close up of foot and eye of Red eyed tree frog {Agalychnis callidryas}

Ingo Arndt / Red eyed tree frog portrait {Agalychnis callidryas} Central America

Nick Garbutt / Female Red-eyed Tree Frog (Agalychnis callidryas) - Caribbean slope race (blue flanks) - obscured in rainforest foliage. Mid-altitude rainforest near Aranal, central Costa Rica.

Alex Hyde / Lemur leaf frog (Agalychnis lemur) Central Caribbean foothills, Costa Rica. IUCN Red List critically endangered species.

Benjamin Barthelemy / Close-up of a Red fox (Vulpes vulpes) resting, with mountains in the background, Vanoise National Park, Rhone Alpes, France, October.

MYN / JP Lawrence / Strawberry poison frog (Oophaga pumilio) Escudo de Veraguas, Panama. Meetyourneighbours.net project

Roland Seitre / Bald head uakari monkey (Cacajao calvus rubicundus) captive, occurs in Amazonian Peru, and Brazil.