Nick Garbutt / Zebu Cattle (Bos primigenius indicus), Los Llanos, Colombia, South America.

Inaki Relanzon / Zebu cattle (Bos indicus) market in Ambalavao, central Madagascar, November 2012.

Axel Gomille / Zebu cattle (Bos primigenius indicus) holy cow, walking past Sadhu or holy man, Varanasi, India

Inaki Relanzon / Boy riding a bull, Inle Lake, Shan State, Myanmar, Burma. August 2009

LYNN M. STONE / Brahman bull {Bos taurus}

Franco Banfi / Zebu bull, Bonito, Mato Grosso do Sul, Brazil

Franco Banfi / Herd of Zebu cattle with huge horns, Pantanal wetlands, Mato Grosso, Brazil

Franco Banfi / Zebu cow with huge horns, Pantanal wetlands, Mato Grosso, Brazil

Daniel Heuclin / Zebu cattle race through mud during celebrations after rice harvest, Sumatra. July 2016.

Daniel Heuclin / Zebu cattle race through mud during celebrations after rice harvest, Sumatra. July 2016.

Daniel Heuclin / People watching Zebu cattle race as they gallop through mud during celebrations after rice harvest, Sumatra.

Daniel Heuclin / People watching Zebu cattle race as they gallop through mud during celebrations after rice harvest, Sumatra.

Bruno D'Amicis / Amhara farmers with cattle grazing on harvested Millet, (Panicum miliaceum) Jimba, Bahir Dar. Lake Tana Biosphere Reserve. Ethiopia, December 2013.

Bruno D'Amicis / Amhara farmer holding millet (Panicum miliaceum) grains during threshing, with cattle in the background. Jimba, Bahir Dar. Lake Tana Biosphere Reserve. Ethiopia, December 2013.

Bruno D'Amicis / Common cranes (Grus gurs) in field with people and cattle in the background, Lake Tana Biosphere Reserve, Ethiopia. December 2013.

Pete Oxford / Mising tribe woman using smoke to drive away mosquitoes away from cattle, Majuli Island, Brahmaputra River, Assam, North East India, October 2014.

Cyril Ruoso / People with Zebu cattle at riverside, Berenty Reserve, Madagascar. October 2005.

Cyril Ruoso / Zebu drawn cart on track, Berenty area, Madagascar, October 2015.

Steve O. Taylor (GHF) / Lozi men loughing with cattle, Lozi People, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Cattle used by Lozi people to plough, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Cattle used by Lozi people to plough, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Lozi men ploughing with cattle, Lozi People, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Lozi man leading cattle for ploughing, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Lozi village, with huts and men leading cattle for ploughing, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Lozi village, with huts and men leading cattle for ploughing, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Lozi people in cart pulled by cattle, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Cattle kept by Lozi people, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Cattle kept by Lozi people, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Cattle team, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Lozi men riding cattle pulled cart, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Lozi men riding cattle pulled cart, Sioma Nqwezi Park, Zambia. November 2010.

Steve O. Taylor (GHF) / Cattle owned by Lozi people, Sioma Nqwezi Park, Zambia. November 2010.

Nick Garbutt / Adult Giant Anteater (Myrmecophaga tridactyla) walking across savannah with Zebu Cattle (Bos primigenius indicus) grazing in background. Near Unamas Private Reserve, Los Llanos, Colombia, South Americ...

Will Burrard-Lucas / Herd of cattle (Bos indicus) walking along eroded tracks, Bale Mountains National Park, Ethiopia.

Roland Seitre / Raven (Corvus corax) on back of Zebu (Bos indicus) Bhutan.

Inaki Relanzon / Zebu cattle (Bos indicus) market in Ambalavao, central Madagascar, November 2012.

Inaki Relanzon / Zebu cattle (Bos indicus) market in Ambalavao, central Madagascar, November 2012.

Inaki Relanzon / Zebu cattle (Bos indicus) market in Ambalavao, central Madagascar, November 2012.

Inaki Relanzon / Zebu cattle (Bos indicus) market in Ambalavao, central Madagascar, November 2012.

Inaki Relanzon / Zebu cattle (Bos indicus) market in Ambalavao, central Madagascar, November 2012.

Inaki Relanzon / Zebu cattle (Bos indicus) market in Ambalavao, central Madagascar, November 2012.

Enrique Lopez-Tapia / Zebu (Bos primigenius indicus) cattle with marks painted on skin, possibly for Gai Tihar - part of the Nepalese festival Tihar / Dewali (festival of lights) in a Tharu village. Royal Chitwan National...

Steven David Miller / Brahman bull in outback, Kimberley station, Old Halls Creek Track, Parry Creek Farm Wyndham, Western Australia

Axel Gomille / Zebu cattle (Bos primigenius indicus) holy cow, walking in front of street vendor and ruins, Hampi, Karnataka, India

Christophe Courteau / Zebu cattle in the Pantanal, Brazil.

Roland Seitre / Asiatic Cattle (Bos indicus) and Grant's Zebra (Equus quagga boehmi). Tana River District, Kenya.

Roland Seitre / Cattle (Bos indicus) herd with herdsmen in Ishaqbini Reserve. Kenya, January.

Roland Seitre / Cattle (Bos indicus) herd in Ishaqbini Reserve. Kenya, January.

Roland Seitre / Cattle (Bos indicus) herd in Ishaqbini Reserve. Kenya, January.

Roland Seitre / Huge flock of domestic cattle (Bos indicus) kept by Peuhl pastoralists, they create problems of overgrazing and desertification of the region, Ranero, Ferlo, Senegal, 2002.

Michael W. Richards / Domesticated oxen (Bos indicus) threshing rice crop, rural Madhya Pradesh, Indiam 2005

Michael W. Richards / Domesticated oxen (Bos indicus) threshing rice crop, rural Madhya Pradesh, India

Florian Möllers / Chinese farmer ploughing his field with two Oxen (Bos indicus). Zhouzhi Nature Reserve, Shaanxi, China, October.

Lisa Hoffner / Samburu livestock illegally entering Samburu National Park searching for food and water. The worst drought (2008-2009) in more than a decade has killed most of the Samburu tribemans' livestock and thr...

Lisa Hoffner / Samburu livestock, as seen from the air, illegally entering Samburu National Park searching for food and water. Holes are made in the dry Ewaso Nyiro river bed to dig out water searching for any kind...

Lisa Hoffner / Samburu livestock, as seen from the air, illegally entering Samburu National Park searching for food and water. Holes are made in the dry Ewaso Nyiro river bed to dig out water searching for any kind...

Lisa Hoffner / Kenya Wildlife Service ranger has confiscated these cattle (Bos indicus) from Samburu tribesman for grazing within Samburu National Park illegally. Kenya, August 2009.

Lisa Hoffner / Samburu tribesman bucketing water from a 6 foot deep man-made hole in the dry Ewaso Nyiro riverbed. The worst drought (2008-2009) in more than a decade killed most of the Samburu tribeman's livestock...

Lisa Hoffner / Emaciated cattle drinking water dug from the dry Ewaso Nyiro riverbed and water heaved up by tribesman for their livestock to drink. August 2009.

Lisa Hoffner / Emaciated cattle (Bos indicus) wandering alone in Samburu National park seeking food and water where there is none. Kenya, August 2009.

Yva Momatiuk & John Eastcott / Brahma Cattle (Bos indicus), Queensland, Australia

Yva Momatiuk & John Eastcott / Brahma Cattle (Bos indicus), Queensland, Australia

Yva Momatiuk & John Eastcott / Brahma Cattle (Bos indicus) trio, Queensland, Australia

Yva Momatiuk & John Eastcott / Brahma Cattle (Bos indicus) herd running, Queensland, Australia

Yva Momatiuk & John Eastcott / Brahma Cattle (Bos indicus) trio, Queensland, Australia

Yva Momatiuk & John Eastcott / Brahma Cattle (Bos indicus) group, Queensland, Australia

Sandesh Kadur / Two wild Water Buffalo (Bubalus arnee) wading though water. Assam, India, April.

ASHISH & SHANTHI CHANDOLA / Maldhari man milking his cattle (Bos indicus), Kutch, Gujarat, India, April 2009

ASHISH & SHANTHI CHANDOLA / Maldhari man milking his cow (Bos indicus) while the calf suckles, Kutch, Gujarat, India, April 2009

Daniel Heuclin / Zebu cattle (Bos indicus) small herd wading through the Swamp of Kaw, French Guiana, South America

Pete Oxford / Pantanal bull lassood by cowboys, and nose ring inserted in order to restrain it. Pantanal. Mato Grosso do Sul Province. Brazil, South America December 2004

Richard Du Toit / Ankole cattle (Bos indicus) grazing, Ol Pejeta conservancy, Kenya, October 2009

Richard Du Toit / Herd of Ankole cattle (Bos indicus) Ol Pejeta conservancy, Kenya, October 2009

Suzi Eszterhas / Zebu cattle {Bos indicus} bulls fighting, at Ol Pejata Conservancy, Northern Kenya

Suzi Eszterhas / Herd of Zebu cattle {Bos indicus} at Ol Pejata Conservancy, Northern Kenya

Inaki Relanzon / Zebu cattle in the High Plateau between Antsirabe and Ambalavao, Central Madagascar

Inaki Relanzon / Zebu cattle (Bos indicus) market with veterinarian controls, High Plateau between Antsirabe and Ambalavao, Central Madagascar

Jouan & Rius / Zebu (Bos indicus) herd in the Highlands, Madagascar

Jouan & Rius / Villager using Zebus (Bos indicus) to plough paddy field, Highlands, Madagascar

Jouan & Rius / Zebu cattle (Bos indicus) drinking in Ankarana massif, Ankarana Special Reserve, Madagascar

Jouan & Rius / Zebu cattle market in the south of Madagascar

LYNN M. STONE / Domestic cattle, Brahman cow, Florida, USA

LYNN M. STONE / Domestic cattle, Brahman cows, Florida, USA

Doug Wechsler / Domestic oxen {Bos indicus} pulling cart of firewood, Zapata Swamp, Bermeja, Cuba

John Downer / Holy cow {Bos indicus} resting in busy street, India

Vivek Menon / Cow dung patties used for fuel, New Delhi, India

John Downer / Cow {Bos indicus} in market, tolerated as holy animals, India

John Downer / Cattle wandering through market, tolerated as holy animals, India

Vivek Menon / Pile of cow dung patties used for fuel, New Delhi, India

Hermann Brehm / Herding Zebu cattle {Bos indicus} along road, Madagascar

Hermann Brehm / Zebu cattle {Bos indicus} Madagascar

Jabruson / Long horn cattle {Bos indicus} showing unusual horn growth, Virunga NP, Dem Rep Congo

John Downer / Cattle feeding from stalls in market, India. Cows are tolerated as holy animals. From BBC Lifesense series.

Niall Benvie / Highland cattle (Bos taurus) feeding in field, Argyll, Scotland

Jeff Vanuga / Samburu warriors bleeding a Cow {Bos indicus}, Kenya. Samburu people live on a diet of blood and milk. 2005.

David Welling / Range cattle {Bos taurus} standing in a field. Venezuela.