Marie Read / Western Grebe (Aechmorphus occidentalis), pair during 'rushing' courtship display in which they run across water's surface in synchrony, near Escondido, California, USA, January.

Piotr Naskrecki / Painted Reed Frog (Hyperolius marmoratus) being eaten by Fishing Spider (Pisauridae), Gorongosa National Park, Mozambique

Bernard Castelein / Deergrass (Scirpus cespitosus) at dawn among Heather (Calluna vulgaris), Groot Schietveld, Wuustwezel, Belgium

Jeff Vanuga / Traffic jam caused by Grizzly bear (Ursus arctos horribilis) mother and cubs crossing road, watched by tourists and photographers, Yellowstone National Park, Wyoming, USA, October 2015.

Frederique Olivier / Adelie penguin (Pygoscelis adeliae) group, Antarctica.

Gavin Hellier / Timelapse of commuters walking through Shibuya Station at rush hour, Shibuya, Tokyo, Honshu, Japan, 2011.

Alex Mustard / Vibrant Red Sea reef scene, with orange female Scalefin anthias (Pseudanthias squamipinnis) swarming in front of Fire coral (Millepora dichotoma) feeding on plankton brought to the reef by currents. R...

Radomir Jakubowski / Marbled white butterfly (Melanargia galathea) on Horsetail (Equisetum), Herbitzheim near Saarbruecken, Saarland, Germany. Finalist in the Macro category and winner of the audience award in the Montpho...

Theo Bosboom,Theo Bosboom / Two pairs of Small spreadwings (Lestes virens) egg depositing in the soft rush in fen, Hondeven, east Holland, August

Michel Roggo / Sockeye / Red Salmon (Oncorhynchus nerka) on spawning migration. Adams River, British Columbia, Canada, October.

Ann & Steve Toon / Malachite kingfisher (Alcedo cristata) perched on rush, Intaka Island, Cape Town, South Africa, February

Wild Wonders of Europe / Maitland / Round headed club rush (Scirpus holoschoenus) with Heath fritillary butterfly (Melitaea athalia) and Niobe fritillary butterfly (Argynnis niobe var eris) Stenje region, Galicica National Park, Macedon...