Dr. Axel Gebauer / Bacteria - iron and manganese oxidizers and their complementary reducers, in the mud of an empty fish pond, Upper Lusatia Heath and Pond Landscape, Upper Lusatia UNESCO Biosphere Reserve, Germany

Juergen Freund / Paddy melon (Cucumis myriocarpus) growing in red sand dunes of the outback. It is a prostrate or climbing annual herb occurs in southern Africa and is a weed in Australia, South Australia, Australia

Sven Zacek,Sven Zacek / Fresh snow and ice on Baltic Sea coast. The red colour comes from seaweed beneath the ice. Baltic sea coast, Northern Estonia, December 2012.

Wild Wonders of Europe / Widstrand / Farmer sowing seeds by hand, Velebit Mountains Nature Park, Croatia, April 2014.

Tim Laman / Helicopter distributing rat poison, the beginning of a rat eradication program. Grytviken, South Georgia, February 2011.

Russell Cooper / Stinkhorn fungus {Phallus impudicus} with fly that disperses spores, UK

Jiri Lochman / Flower wasp (Thynninae sp.) wingless female waiting on the ground to be picked up by a flying male, disperses pheromones to advertise her readiness to mate, Bladensburg National Park, Queensland, Aust...

Jiri Lochman / Flower wasp (Macrothynnus insignis) wingless female, waiting on a Grass tree (Xanthorrhoea preissii) leaf to be picked up by a flying male, she disperses pheromones to advertise her readiness to mate,...

Jiri Lochman / Flower wasp (Macrothynnus insignis) wingless female, waiting on a Grass tree (Xanthorrhoea preissii) leaf to be picked up by a flying male, she disperses pheromones to advertise her readiness to mate,...

Alex Hyde / Collared earthstar (Geastrum michelianum) on forest floor, dispersing spores. This species disperses its spores when raindrops strike the fruiting body, here the fungus has been tapped with a twig to...