Theo Bosboom / Close-up of Emerald damselfly (Lestes sponsa) compound eye, covered in dewdrops, Hatertse vennen, the Netherlands, July.

Paul Bertner / Fly with compound eyes, Khao Yai National Park, Thailand

Alex Hyde / Close-up of Owl Butterfly (Caligo memnon) head showing compound eyes and proboscis. Captive, originating from Central America.

Andy Sands / Robberfly (Machimus cingulatus) head close up showing large compound eyes. Captive, UK, July.

Lisa Hoffner / A baby orphan Elephant (Loxodonta africana), named Murka, wounded by a poacher's spear is comforted by the touch of another elephant's trunk from outside its pen. David Sheldrick Wildlife Trust Eleph...

David Maitland / Close-up view of the upward-looking giant dorsal compound eyes of the St Marks fly (Bibio marci) used to detect female flies flying above. Like many insects the eyes are "hairy". Feltwell, Norfolk, UK...

David Maitland / Close-up view of the upward-looking giant dorsal compound eyes of the St Marks fly (Bibio marci) used to detect female flies flying above. Like many insects the eyes are "hairy". Feltwell, Norfolk, UK...

David Maitland / Head of female St. Marks fly (Bibio marci) showing normal sized compound eyes. Feltwell, Norfolk, UK

David Maitland / Head of female St. Marks fly (Bibio marci) showing normal sized compound eyes. Feltwell, Norfolk, UK

David Maitland / Close up of head of a male miniature Blue-winged olive mayfly (Acentrella sp). The male mayflys head is dominated by its remarkable red 'Turbinate' compound eyes which, directed upwards and phenomenal...

Alex Hyde / European hornet (Vespa crabro) head close up showing the three ocelli between the two compound eyes.

Russell Cooper / Common Darter Dragonfly (Sympetrum striolatum) head and compound eyes, South London, UK, September

Gerrit Vyn / Jonah natural gas field south of Pinedale, Wyoming.

Anup Shah / African lion (Panthera leo) walking along car tracks into distance, Serengeti National Park, Tanzania

Igor Shpilenok / A village on the shores of the dried basin of Lake Zun-Torey, Daurian Nature Reserve. Daurian Steppes UNESCO World Heritage Site, Zabaykalsky Krai, Siberia, Russia, June 2016.

Gerrit Vyn / Mudflats on the Yukon Delta National Wildlife Refuge, Alaska, USA, September 2010. The delta contains the single largest expanse of intertidal habitat in North or South America and is a crucial stagin...

Charlie Summers / Comet C/2013 R1 (Lovejoy) streaming past the star Sarin (HIP 84379) in the Hercules Constellation as it leaves perihelion (its nearest point to the sun) and returns on its orbit to outer space. Taken...

Orsolya Haarberg / Boat on Vestfjorden, viewed from top of Reinebringen. Moskenes municipality, Lofoten, Nordland, Norway. August 2012

John Waters / Sunrise reflected in vast expanse of flood water lying over the fields at King's Sedge Moor, near Othery, Somerset Levels, Somerset, UK. January 2014

John Waters / Sunrise reflected in vast expanse of flood water lying over the fields at King's Sedge Moor, near Othery, Somerset Levels, Somerset, UK. January 2014

Jim Brandenburg / Mont Saint-Michel and tidal expanse, Normandy, France

Peter Cairns / 2020VISION / Silhouette of two people walking on wide expanse of beach, Luskentyre, North Harris, Western Isles / Outer Hebrides, Scotland, UK, May 2011

Mark Hamblin / 2020VISION / Pool system on peat bog at dawn, Forsinard Flows RSPB reserve, Flow Country, Sutherland, Scotland, UK, June 2011. Did you know? The Flow Country is a huge expanse of blanket bog which may look like a...

Ernie Janes / Vast expanse of sand at low tide, Bob Halls sand, Wells, North Norfolk Coast, UK