Brent Hedges / Globefish (Diodon nicthemerus) South Australia, Australia

Petra Wegner / Miniature Piglet, 3 months

Petra Wegner / Miniature Piglet, 3 months

Petra Wegner / Miniature Piglet, 3 months

Konrad Wothe / Common Porcupine (Erethizon dorsatum) in tree, North America

ZSSD / Common Porcupine (Erethizon dorsatum) close-up

ZSSD / Common Porcupine (Erethizon dorsatum) adult in tree, native to North America

Luiz Claudio Marigo / Porcupine {Coendou mexicanum} feeding in tree, Gran Chaco NP, Bolivia

Simon Colmer / Domestic pig (Sus scrofa domestica) boar sleeping, UK.

Rod Williams / African crested porcupine {Hystrix cristata} captive, from Africa

Mary McDonald / North American porcupine {Erethizon dorsatum} climbing, USA

LYNN M. STONE / North American porcupine {Erethizon dorsatum} with deer's antler, Montana, USA

LYNN M. STONE / Domestic piglets {Sus scrofa domestica} in bucket, USA

LYNN M. STONE / Domestic piglet {Sus scrofa domestica} amongst vegetables, USA

Thomas Lazar / North american porcupine {Erethizon dorsatum} sitting on post, Kettle River, Minnestota, USA

LYNN M. STONE / Domestic piglet in bucket with Sunflowers {Sus scrofa domestica} USA

LYNN M. STONE / Domestic piglet {Sus scrofa domestica} in bucket with Daffodils, USA

LYNN M. STONE / Domestic piglet {Sus scrofa domestica} amongst sunflowers, USA

LYNN M. STONE / North american porcupine {Erethizon dorsatum} amongst birch leaves and antler, Captive, USA

LYNN M. STONE / Domestic piglet {Sus scrofa domestica} Mixed Breed, Illinois, USA

LYNN M. STONE / North american porcupine {Erethizon dorsatum} amongst birch leaves and antler, Captive, USA

LYNN M. STONE / Large Domestic pig {Sus scrofa domestica} wallowing in mud, Mixed Breed, USA

LYNN M. STONE / Domestic piglet {Sus scrofa domestica} Mixed Breed, amongst vegetables, USA

LYNN M. STONE / North american porcupine {Erethizon dorsatum} climbing tree in snow, Captive, USA

LYNN M. STONE / Domestic pig {Sus scrofa domestica} feeding on apples, Illinois, USA

George McCarthy / Domestic pigs {Sus scrofa domestica} Gloucester Old Spot with piglets, Free range rearing Unit, Norfolk, UK

Dietmar Nill / Domestic pig with woolly coat {Sus scrofa domestica} Hungary

LYNN M. STONE / Domestic piglet {Sus scrofa domestica} in bucket with apples, mixed breed, USA

LYNN M. STONE / Girl holding Domestic piglet {Sus scrofa domestica} Mixed Breed, USA

LYNN M. STONE / Domestic pig, mixed breed {Sus scrofa domestica} wallowing in mud, Illinois, USA 1996

LYNN M. STONE / Young Domestic piglet {Sus scrofa domestica} mixed breed, USA 1999

LYNN M. STONE / Mixed-breed domestic pig feeding on apples {Sus scrofa domestica} USA

LYNN M. STONE / Domestic piglet in barrel {Sus scrofa domestica} Illinois, USA

Dietmar Nill / Domestic pigs, Mangalica breed {Sus scrofa domestica} female and young grazing, note hair / wool on pigs, Hungary

LYNN M. STONE / Domesetic pig feeding from box of apples {Sus scrofa domestica} Illinois, USA

WILLIAM OSBORN / Domestic cross breed piglets suckling {Sus scrofa domestica} Gloucestershire, UK

LYNN M. STONE / Domestic pig sitting in mud wallow {Sus scrofa domestica} USA

Jose B. Ruiz / Black domestic pigs {Sus scrofa domestica} grazing in Olive grove. Extremedura, Spain

LYNN M. STONE / Domestic piglets {Sus scrofa domestica} resting amongst vegetables, USA

Lynn M Stone / Domestic piglet with vegetables {Sus scrofa domestica} USA

David Kjaer / Domestic piglets in open pig sty {Sus scrofa domestica} Wiltshire, UK. Free range

LYNN M. STONE / Two Domestic piglets {Sus scrofa domestica} USA

LYNN M. STONE / Domestic piglet beside watering can {Sus scrofa domestica} USA

LYNN M. STONE / North American porcupine (Erethizon dorsatum) USA

LYNN M. STONE / Domestic Piglets {Sus scrofa domestica} sleeping in sack, Illinois, USA.

LYNN M. STONE / Domestic pigs, {Sus scrofa domestica} mixed breed feeding on apples, Illinois, USA

Colin Seddon / Domestic pigs indoors sleeping on straw {Sus scrofa domestica} England, UK

Dan Burton / Free range Domestic pigs on pig farm {Sus scrofa domestica} Exeter, Devon, UK

Dan Burton / Domestic piglets {Sus scrofa domestica} Devon, UK

Larry Michael / Underside of North american porcupine showing teeth {Erethizon dorsatum} captive, Illinois, USA

Eric Baccega / Domestic pig suckling piglets {Sus scrofa domestica} France

Eric Baccega / Domestic pig suckling piglets {Sus scrofa domestica} France

Eric Baccega / Domestic pig suckling piglets {Sus scrofa domestica} France

Eric Baccega / Domestic pig suckling piglets {Sus scrofa domestica} France

Eric Baccega / Domestic pig suckling piglets {Sus scrofa domestica} France

Gary Smith / Domestic Pigs {Sus scrofa domestica} in fattening unit, Norfolk, UK.

Philippe Clement / Domestic pig {Sus scrofa domestica} Vietnamese Potbellied sow suckling piglets, Belgium

Philippe Clement / Domestic pig {Sus scrofa domestica} Vietnamese Potbellied sow suckling piglets

Philippe Clement / Domestic pig {Sus scrofa domestica} Vietnamese Potbellied sow suckling piglets

Philippe Clement / Domestic pig {Sus scrofa domestica} Vietnamese Potbellied sow with piglets

LYNN M. STONE / Mixed breed Domestic piglet {Sus scrofa domestica} USA.

LYNN M. STONE / Mixed breed Domestic pig wallowing in mud {Sus scrofa domestica} USA.

LYNN M. STONE / Mixed breed Domestic pig wallowing in mud {Sus scrofa domestica} USA.

LYNN M. STONE / Mixed breed Domestic pigs wallowing in mud {Sus scrofa domestica} USA.

Luiz Claudio Marigo / Crested porcupine {Hystrix sp} Bolivia

LYNN M. STONE / Domestic piglets sleeping in a wooden barrel. USA

LYNN M. STONE / Domestic pig in mud wallow. USA, Illinois

Brent Hedges / Globe fish {Diodon nichthemerus}, NSW, Australia.

Dan Burton / Tamworth piglets suckling {Sus scrofa domestica}

Pete Oxford / Local Indians with pigs at animal market, Saquisili, near Cotopaxi, Andes, Ecuador

Duncan Usher / Domestic Pig (Sus scrofa domesticus) two piglets with tagged ears, Europe

Niall Benvie / Young North american porcupine climbing tree {Erethizon dorsatum}

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) piglets nursing from mother, northern Germany

Konrad Wothe / Common Porcupine (Erethizon dorsatum) portrait in tree, North America

Konrad Wothe / Common Porcupine (Erethizon dorsatum) detail of quills, North America

Konrad Wothe / Common Porcupine (Erethizon dorsatum) baby, North America

Konrad Wothe / Common Porcupine (Erethizon dorsatum) baby climbing in tree, North America

Konrad Wothe / Common Porcupine (Erethizon dorsatum) mother and baby in tree, North America

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) piglets sleeping, northern Germany

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) black-spotted piglet digging in the ground with its nose, northern Germany

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) grazing after wallowing in mud, northern Germany

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) mother and piglets sleeping, northern Germany

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) black-spotted piglet digging in the ground with its nose, northern Germany

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) eight piglets standing close together to stay warm and for protection, northern Germany

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) sow grazing on meadow at sunset, northern Germany

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) sow resting on ground, northern Germany

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) piglets nursing, northern Germany

Konrad Wothe / Domestic Pig (Sus scrofa domesticus) portrait, Pantanal, Brazil

Birgitte Wilms / Porcupinefish (Diodon sp), Red Sea, Egypt

Heidi & Hans-Juergen Koch / Domestic Pig (Sus scrofa domesticus) wallowing in mud to keep cool and control parasites, Germany

Konrad Wothe / Domestic Pig (Sus scrofa domesticus) on green grass, Germany

Norbert Wu / Porcupinefish (Diodon sp) swells up in defense, Philippines

Norbert Wu / Domestic Pig (Sus scrofa domesticus) portrait, captive animal, North America

Mitsuaki Iwago / Domestic Pig (Sus scrofa domesticus) sow with piglets, Japan

Michael Quinton / Common Porcupine (Erethizon dorsatum) feeding on Pussywillow (Salix discolor) in the spring, Alaska

Michael Quinton / Common Porcupine (Erethizon dorsatum) feeding on Mistletoe (Phoradendron serotinum) in winter, Island Park, Idaho