Graham Eaton / An underwater view of a mountain stream showing internal reflections on the water surface, Snowdonia NP, Gwynedd, Wales, UK, December 2009.

Kristel Richard / Two riders on horses (Equus caballus) from the Gremio di Falegnamii, dressed in traditional costume, parade before the start of the Sartiglia (race to the star) in Oristano, Sardinia, Italy. February...

Kristel Richard / Portrait of a masked rider on a horse (Equus caballus) from the Gremio di Falegnami parades before the start of the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Andy Rouse / Common wildebeest (Connochaetes taurinus) jumping into Mara River during migration, Masai Mara, Kenya

Martin Dohrn / Lioness killing Zebra, Serengeti NP, Ngorongoro Conservation Area, Tanzania, East Africa. Image taken at night using 'Starlight Camera' technology without artificial lighting.

Ashley Cooper / Injured climber with a dislocated shoulder is winched off Jacks Rake Pavey Ark by the Langdale Ambleside Mountain Rescue Team, Lake District, England, UK, August. August 2005

Graham Eaton / Waves breaking at Porth Oer, Whistling sands, Aberdaron, Wales, November

Roland Seitre / Drama group acting out the story of the Critically endangered Spix's macaw (Cyanopsitta spixii) to children near Curaca, Bahia, Brazil, where the last known wild individuals were seen.

Graham Eaton / Underwater view of a mountain lake with ice and a quartz boulder, Llyn Idwal, Snowdonia National Park, Gwynedd, Wales, UK, December

Graham Eaton / Cwm Idwal and the Devils Kitchen, a classic glacial tarn or corrie, Snowdonia National Park, Wales, January 2010.

Kristel Richard / During the 'vestizione' (dressing), 'Su Cumponidoreddu', the head of the 'Sartiglia' (race to the star) is officially dressed in the traditional costume and mask in Oristano, Sardinia, Italy. February...

Kristel Richard / During the 'vestizione' (dressing), 'Su Cumponidoreddu', the head of the 'Sartiglia' (race to the star) is officially dressed in the traditional costume and mask in Oristano, Sardinia, Italy. February...

Kristel Richard / During the 'vestizione' (dressing), 'Su Cumponidoreddu', the head of the 'Sartiglia' (race to the star) is officially dressed in the traditional costume in Oristano, Sardinia, Italy. February 2010

Kristel Richard / 'Su Cumponidoreddu' the performing masked rider on a horse (Equus caballus) and the head of the 'Sartiglia' (race to the star), tries to catch the star, in Oristano, Sardinia, Italy. February 2010

Kristel Richard / During the dressing of the Gremio di Falegnami, 'Su Cumponidori' the head of the 'Sartiglia' (race to the star) is officially dressed in the traditional costume and mask in Oristano, Sardinia, Italy....

Kristel Richard / During the dressing of the Gremio di Falegnami, 'Su Cumponidori' the head of the 'Sartiglia' (race to the star) is officially dressed in the traditional costume and mask in Oristano, Sardinia, Italy....

Kristel Richard / During the dressing of the Gremio di Falegnami, 'Su Cumponidori' the head of the 'Sartiglia' (race to the star) is officially dressed in the traditional costume and mask in Oristano, Sardinia, Italy....

Kristel Richard / During the dressing of the Gremio di Falegnami, 'Su Cumponidori' the head of the 'Sartiglia' (race to the star) is officially dressed in the traditional costume in Oristano, Sardinia, Italy. February...

Kristel Richard / During the dressing of the Gremio di Falegnami, 'Su Cumponidori' the head of the 'Sartiglia' (race to the star) is officially dressed in the traditional costume in Oristano, Sardinia, Italy. February...

Kristel Richard / During the dressing of the Gremio di Falegnami, 'Su Cumponidori' the head of the 'Sartiglia' (race to the star) is officially dressed in the traditional costume in Oristano, Sardinia, Italy. February...

Kristel Richard / Portrait of a masked rider on a horse (Equus caballus) from the Gremio di Falegnami trying to catch the star of 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / 'Su Componidori' (head of the race) masked rider on a horse (Equus caballus) from the Gremio di Falegnami catches the star of 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / Portrait of two masked riders on horses (Equus caballus) from the Gremio di Falegnami parades before the start of the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / Close-up of the costume of a masked rider on a horse (Equus caballus) from the Gremio di Falegnami parades before the start of the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. Februar...

Kristel Richard / Portrait of a masked rider on a horse (Equus caballus) from the Gremio di Falegnami parades before the start of the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / A performing masked rider on a horse (Equus caballus) from the Gremio dei Contadini tries to catch the star during the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / A portrait of a performing masked rider on a horse (Equus caballus) from the Gremio dei Contadini during the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / Close up of the costume of a rider from the Gremio dei Contadini before the start of the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / A performing masked rider on a horse (Equus caballus) from the Gremio dei Contadini tries to catch the star during the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / Horses (Equus caballus) and riders from the Gremio dei Contadini before the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / Horses (Equus caballus) and riders from the Gremio dei Contadini performing acrobatics for the gathered crowds, after the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / A performing masked rider on a horse (Equus caballus) from the Gremio dei Contadini tries to catch the star during the 'Sartiglia' (race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / A masked rider mounted on a donkey (Equus asinus) mocks the 'Sartiglia' (a horse race to the star) in Oristano, Sardinia, Italy. February 2010

Kristel Richard / Two Gardians (Traditional French cowboys) herd their Camargue mares (Equus caballus) and foals, during the transhumance, in Tarascon, Camargue, Provence, France. June 2008

Alan Williams / Grey Heron (Ardea cinerea) with Lapwing (Vanellus vanellus) chick prey. North Wales, UK, May

Alan Williams / Grey Heron (Ardea cinerea) predating on Lapwing chick(Vanellus vanellus) whilst under attack from parent adult Lapwing. North Wales, UK, May

Alan Williams / Grey Heron (Ardea cinerea) hunting Lapwing chick(Vanellus vanellus) whilst under attack from parent adult Lapwing, North Wales, UK, May.

Mark Brownlow / Filming BBC actors in re-enactment of the Whaleboat drama following the sinking of the Whaleship Essex by Sperm whales in the South pacific in 1820. February 2008

Mark Brownlow / BBC actors in re-enactment of the Whaleboat drama following the sinking of the Whaleship Essex by Sperm whales in the South pacific in 1820. February 2008

Mark Brownlow / BBC actors in re-enactment of the Whaleboat drama following the sinking of the Whaleship Essex by Sperm whales in the South pacific in 1820. February 2008

Mark Brownlow / BBC actors in re-enactment of the Whaleboat drama following the sinking of the Whaleship Essex by Sperm whales in the South pacific in 1820. February 2008

Mark Brownlow / BBC actors in re-enactment of the Whaleboat drama following the sinking of the Whaleship Essex by Sperm whales in the South pacific in 1820. February 2008

Mark Brownlow / BBC cameraman filming a re-enactment of the Whaleboat drama following the sinking of the Whaleship Essex by Sperm whales in the South pacific in 1820. February 2008