Peter Cairns / 2020VISION / Old fishing boat held upright at low tide with ropes and chains, Roa Island, Morecambe Bay, Cumbria, England, UK, February 2012. Did you know? Over the last decade the number of UK fishermen has decl...

Mary McDonald / Domesticated Indian Elephant (Elephas maximus indicus) baby sheltering under its mother, in chains. Pench National Park, Madhya Pradesh, India.

Michael W. Richards / Domesticated Indian elephants (Elephas maximus) being walked to forest at end of the working day, Pench Tiger Reserve, Madhya Pradesh, India

Bryan and Cherry Alexander / Meltwater pouring off iceberg as chains of droplets. Scoresbysund Fiord, East Greenland, 2005.

Nick Garbutt / Close-up of foot of chained domestic Asian Elephant (Elephas maximus) Royal Chitwan National Park, Nepal.

Heidi & Hans-Juergen Koch / Honey Bee (Apis mellifera) chains made to repair honeycomb, Bee Station at the Bavarian Julius-Maximilians-University of Wurzburg, Germany

Heidi & Hans-Juergen Koch / Honey Bee (Apis mellifera) chains made to repair honeycomb, Bee Station at the Bavarian Julius-Maximilians-University of Wurzburg, Germany

Mark Moffett / Weaver Ant (Oecophylla longinoda) group building nest by pulling on leaves and forming chains, Africa

Konrad Wothe / Former whaler station Grytviken, King Edward Cove, South Georgia, South Sandwich Islands, Subantarctic, Antarctica. February 2007.

Sandesh Kadur / Men painted in the stripes of a tiger, dance through the streets of towns and villages paying homage at temples along the way as part of Huli Vesha, Tiger Dance, Western Ghats, Southern India

Merryn Thomas / "Teign Spirit" pulled up at low tide in the Old Harbour. Cornwall County Pilot Gig Championships, Newquay, September 2008.

Merryn Thomas / "Teign Spirit" pulled up at low tide in the Old Harbour. Cornwall County Pilot Gig Championships, Newquay, September 2008.

Benoit Stichelbaut / Chain detail.

Ernie Janes / Pig-tailed macaque (Macaca nemestrina) being forced to drink beer for tourist entertainment, Central Thailand

Ernie Janes / Bengal tiger (Panthera tigris tigris) used as tourist attraction at Thailand zoo

Peter Cairns / 2020VISION / Old fishing boat held upright at low tide with ropes and chains, Roa Island, Morecambe Bay, Cumbria, England, UK, February 2012

Onne van der Wal / Saint Barths Bucket Super Yacht Regatta, Caribbean, March 2009.

Inaki Relanzon / Working Indian elephant (Elaphus maximus) in elephant camp, Taungoo, Central Myanmar (Burma). September 2009

Inaki Relanzon / Working Indian elephant (Elaphus maximus) receiving treatment in elephant camp, Taungoo, Central Myanmar (Burma). September 2009

David Woodfall / At work on Severn Estuary barge. Severn Estuary, England

David Woodfall / At work on Severn Estuary barge. Severn Estuary, England, August 2009

David Woodfall / At work on Severn Estuary barge. Severn Estuary, England, August 2009

Adrian Davies / Thrift (Armeria maritima) flowering beside rusty chain, South Stack, Anglesey, Wales, UK

Adrian Davies / Thrift (Armeria maritima) flowering beside rusty chain, South Stack, Anglesey, Wales, UK

Nick Garbutt / Common daisies (Belis perennis) growing amidst discarded rusty chain. Isle of Iona, Inner Hebrides, Scotland, UK

Nick Garbutt / Common daisies (Belis perennis) growing amidst discarded rusty chain. Isle of Iona, Inner Hebrides, Scotland, UK

Nick Garbutt / Close-up of foot of chained domestic Asian Elephant (Elephas maximus) Royal Chitwan National Park, Nepal. March 2008.

Mark Moffett / Green Tree Ant (Oecophylla smaragdina) making chains of their own bodies to bridge trees, Papua New Guinea

Tony Heald / Asian Elephant [Elephas maximas] restraint chains on working elephant also showing soles of front feet, Bandhavgarh NP, Madhya Pradesh, India March 2008

Heidi & Hans-Juergen Koch / Honey Bee (Apis mellifera) chains made to repair honeycomb, Bee Station at the Bavarian Julius-Maximilians-University of Wurzburg, Germany

Eric Baccega / Canadian Eskimo working dogs (Canis familiaris) chained up and resting in the snow, Northwest Territories, Canada March 2007

Karl Ammann / Chained, captive chimpanzee (Pan troglodytes) smoking a cigarette. Luna Park holiday resort, Yaounde, Cameroon.

Karl Ammann / Chimpanzee (Pan troglodytes) in dereclict city zoo, Central Africa. Chimps orphaned by the bushmeat trade are sold as pets and often kept in deplorable conditions as they grow older and become difficu...

Pete Oxford / Cucurucho parade on Good Friday commemorating the Passion and Death of Jesus Christ, Easter Weekend Catholic Parade, Quito, Ecuador. People wearing hoods and robes

Kim Taylor / Chains of Diatoms {Diatoma elongatum} on freshwater algae, UK.

Staffan Widstrand / Dromedary Camel portrait {Camelus dromedrius} Egypt.

Nick Garbutt / Close up of chained foot of Indian elephant {Elephas maximus} India

Nick Garbutt / Close-up of chained foot of Indian elephant {Elephas maximus} captive, India

Nick Garbutt / Close up of chained foot of Indian elephant {Elephas maximus} India

ASHISH SHANTHI CHANDOLA / People feeding domesticated Indian elephants , Jaldapara WS, West Bengal, N India

Onne van der Wal / Superyachts lined up on the docks in St Barths before the St. Barths Bucket Regatta, St Barthelemy, Caribbean.

Onne van der Wal / Tender lying on the sand at low tide, South Island, New Zealand.

Onne van der Wal / Rusted chains and tackle that were used to handle the whale carcasses at the now abandoned whaling station in Grytviken, South Georgia.

Onne van der Wal / Anchor chain lying along a grass and sand seabed in clear water.

Rick Tomlinson / 180ft Superyacht "Adele" anchored off the coast of Sweden during her maiden voyage. ^^^ Adele is a 180-foot Andre Hoek designed yacht, built by the world renowned Vitters Shipyard in Holland. Her own...

Onne van der Wal / Underwater view of the bow and anchor chain of a cruising yacht.

Onne van der Wal / Underwater view of the bow and anchor chain of a cruising yacht.

Onne van der Wal / Anchor chain underwater.

Onne van der Wal / Anchor chain stretching into the blue sea

Marc Robillard / Two wooden boats on the riverbed in the morning, at low tide near Paimpol, Brittany, France.

Marc Robillard / Wooden boats on the riverbed in the morning, at low tide near Paimpol, Brittany, France.

Onne van der Wal / Underwater view of the hull and keel of "Shaman," an 88 ft yacht anchored in Tonga, part of the Vava'u Group of islands, South Pacific, 2000.

Onne van der Wal / Underwater view of a motorboat and anchor chain, Bahamas.

Onne van der Wal / Underwater view of a motorboat bow and anchor chain, Bahamas.

Onne van der Wal / Anchor chain raised through the hawser pipe on a large ship.

Angelo Giampiccolo / Aquaculture equipment with fish inside, Marina di Camerota, Campania, Italy.

Angelo Giampiccolo / Aquaculture equipment with fish inside, Marina di Camerota, Campania, Italy.

Angelo Giampiccolo / Aquaculture equipment with chain, Marina di Camerota, Campania, Italy.

Onne van der Wal / Brown-pelicans (Pelecanus occidentalis) and a gull (Larinae) sitting on a fishing boat, Caleta Lobos, Mexico.