Kristel Richard / Two rare Sorraia stallions pulling a cart, at the Coudelaria Nacional (National Stud Farm), in Alter do Chao, District of Portalegre, Alentejo, Portugal.

Kristel Richard / Two rare Sorraia stallions pulling a cart in front of the Coudelaria Nacional (National Stud Farm), in Alter do Chao, District of Portalegre, Alentejo, Portugal.

Kristel Richard / Three horses (Equus caballus) transport a statue of the Madonna, during the parade of the Fiesta De La Patria Gaucha, Tacuarembo, Uruguay, April 2008

Nick Upton / Steam powered traction engine on display at North Somerset Show, Wraxall, Nr Bristol, UK. May 2009

Pete Oxford / Loading bricks onto cart pulled by Zebu cattle, MADAGASCAR 2005

John Cancalosi / Amish farmer driving a team of Horses pulling wagon through field in snow, New York, USA

David Tipling / Shire horse being trained for traction, England, UK

Nick Turner / Bringing in the summer hay, Zarnesti, Carpathian mountains, Romania

Conrad Maufe / Nigel Marven with camel cart, India

Pete Oxford / Salasaca Indians planting seeds in newly ploughed field, Salasaca, Andes, Ecuador 2004

Colin Seddon / Suffolk punch carthorse pulling chain harrow {Equus caballus} Somerset UK

Colin Seddon / Shire horse pair ploughing {Equus caballus} Somerset UK

Colin Seddon / Shire horse pair pulling ridden spring harrow {Equus caballus} Somerset UK

Asgeir Helgestad / Horse dragging timber from woodland. Norway

Bernard Castelein / Dromedary camels used to pull carts {Camelus dromedarius} Rajasthan, India

Anup Shah / Camel with cart at salt extraction pans, Rann of Kutch, Gujarat, India

Mike Read / Horse and cart on snow covered heathland, Hampton Ridge, New Forest National Park, Hampshire, UK, April 2008

Colin Seddon / Shetland pony pulling light trade cart. New Forest show Hampshire UK