Warthog (Phacochoerus aethiopicus), male, Addo Elephant National Park, South Africa, Africa

Gloucester Old Spot pigs drink from a trough, Gloucestershire, United Kingdom

Gloucester Old Spot pig, Gloucestershire, United Kingdom

Gloucester Old Spot pig, Gloucestershire, United Kingdom

Gloucester Old Spot pig drinks from a trough, Gloucestershire, United Kingdom

Gloucester Old Spot pig, Gloucestershire, United Kingdom

Fresh pig's ears and head for sale at market at Chau Doc, Mekong River Delta, Vietnam, Indochina, Southeast Asia, Asia

Tamworth Pig that has the run of virtually the whole island, but tends to stay on the northern end of the isle on Calums road near Arnish, Isle of Raasay, Scotland, United Kingdom, Europe

This Gloucester Old Spot Pig has the run of virtually the whole of the Isle of Raasay, but tends to stay on the northern end of the isle on Calums road near Arnish, Isle of Raasay, Scotland, United Kingdom, Europe

This Gloucester Old Spot Pig has the run of virtually the whole of the Isle of Raasay, but tends to stay on the northern end of the isle on Calums road near Arnish, Isle of Raasay, Scotland, United Kingdom, Europe

Tamworth Pig that has the run of virtually the whole island, but tends to stay on the northern end of the isle on Calums road near Arnish, Isle of Raasay, Scotland, United Kingdom, Europe

Tamworth Pig that has the run of virtually the whole island, but tends to stay on the northern end of the isle on Calums road near Arnish, Isle of Raasay, Scotland, United Kingdom, Europe

Pink pig on a farm; Armstrong, British Columbia, Canada

A warthog piglet, Phacochoerus africanus, stands in short grass, ears back, Sabi Sands, Greater Kruger National Park, South Africa