Jeff Foott / Jaguar (Panthera onca) male, hunting Capybara (Hydrochoerus hydrochaeris). The capybara jumping away has cut the nose of the Jaguar with its toenail. Cuiaba River, Pantanal Matogrossense National Park...

Jeff Foott / Jaguar (Panthera onca) male, hunting Capybara (Hydrochoerus hydrochaeris). The capybara while jumping away has cut the nose of the Jaguar with its toemail. Cuiaba River, Pantanal Matogrossense Nationa...

Gabriel Rojo / Cattle tyrant (Machetornis rixosus) perched on capibara (Hydrochoerus hydrochaeris) Ibera Marshes, Corrientes Province, Argentina

Suzi Eszterhas / Capybara (Hydrochoerus hydrochaeris) mother and pup on riverbank, Pantanal, Brazil

Suzi Eszterhas / Capybara (Hydrochoerus hydrochaeris) young resting on mother, Pantanal, Brazil. Sequence 1 of 5

Suzi Eszterhas / Capybara (Hydrochoerus hydrochaeris) mother nursing young, Pantanal, Brazil

Nick Garbutt / Female Capybara (Hydrochoerus hydrochaeris) swimming in line with young after escaping a Jaguar attack (Panthera onca palustris) in a lagoon off the Paraguay River. Taiama Ecological Reserve, Pantanal...

Ben Cranke / Capybara (Hydrochoerus hydrochaeris) family group together on a river bank, Mato Grosso, Pantanal, Brazil. August.

Ben Cranke / Wattled Jacana (Jacana jacana) perched on resting Capybara (Hydrochoerus hydrochaeris) Mato Grosso, Pantanal, Brazil. July.

Patricio Robles Gil / Silhouetted Capivara / Capibara (Hydrochoerus hydrochaeris) with Cattle Tyrant (Machetornis rixosa), which feeds on flies approaching the Capibara. Parana, Southern Brazil.

Luiz Claudio Marigo / Capybara (Hydrochoeris hydrochaeris) mother with two suckling infants. The Pantanal wetlands of Mato Grosso State, Brazil, October.

Pete Oxford / Capybara (Hydrochoerus hydrochaeris) in shallow water, Pantanal, Brazil

Theo Allofs / Capybara (Hydrochoerus hydrochaeris) mother and young, Pantanal, Brazil

Theo Allofs / Capybara (Hydrochoerus hydrochaeris) in river at sunrise, Pantanal, Brazil

Konrad Wothe / Capybara (Hydrochoerus hydrochaeris) wading through water, Pantanal, Brazil

Konrad Wothe / Capybara (Hydrochoerus hydrochaeris) group, Pantanal, Brazil

Konrad Wothe / Cattle Tyrant (Machetornis rixosa) on Capybara (Hydrochoerus hydrochaeris), Pantanal, Brazil

Pete Oxford / Capybara {Hydrochoerus hydrochaeris} with Tyrant flycatcher bird on its back, Pantanal, Brazil

Bernard Castelein / Capybara (Hydrochaeris hydrochaeris), approaching water, Pampas del Yacuma Protected Area, Bolivia

Bernard Castelein / Capybara (Hydrochaeris hydrochaeris) family on riverbank, Pampas del Yacuma Protected Area, Bolivia

Franco Banfi / Capybara male with young (Hydrochoerus hydrochaeris) Pantanal, Mato Grosso do Sul, Brazil

Franco Banfi / Capybara female (Hydrochoerus hydrochaeris) Pantanal, Mato Grosso do Sul, Brazil

Franco Banfi / Capybara male (Hydrochoerus hydrochaeris) Pantanal, Mato Grosso do Sul, Brazil

Nick Garbutt / Capybara (Hydrochoerus hydrochaeris) female with litter of suckling pups. Banks of the Cuiaba River, Pantanal, Mato Grosso, Brazil.

David Perpinan / Tilt shot up to a Capybara (Hydrochoerus hydrochaeris), Pantanal, Mato Grosso do Sul, Brazil.

David Perpinan / Capybara (Hydrochoerus hydrochaeris) resting, Pantanal, Mato Grosso do Sul, Brazil.

David Perpinan / Capybara (Hydrochoerus hydrochaeris) feeding, Pantanal, Mato Grosso do Sul, Brazil.

David Perpinan / Close-up of a Capybara (Hydrochoerus hydrochaeris) walking, Pantanal, Mato Grosso do Sul, Brazil.

Franco Banfi / Capybara female (Hydrochoerus hydrochaeris) Mato Grosso do Sul, Brazil

Franco Banfi / Marsh deer (Blastocerus dichotomus) and Capybara (Hydrochaeris hydrochaeris) resting in stream, Pantanal, Mato Grosso, Brazil

Luke Massey / Capybara (Hydrochoerus hydrochaeris) resting in water, Pantanal, Brazil.

Jeff Foott / Jaguar (Panthera onca) male, hunting Capybara (Hydrochoerus hydrochaeris) leaping away, Pantanal Matogrossense National Park, Pantanal, Brazil. Sequence 1 of 3

Jeff Foott / Jaguar (Panthera onca) male, hunting Capybara (Hydrochoerus hydrochaeris). The capybara jumping away has cut the nose of the Jaguar with its toenail. Cuiaba River, Pantanal Matogrossense National Park...

Jeff Foott / Jaguar (Panthera onca) male stalking a Capybara (Hydrochoerus hydrochaeris) Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.

Jeff Foott / Jaguar (Panthera onca) male stalking a Capybara (Hydrochoerus hydrochaeris) Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.

Jeff Foott / Jaguar (Panthera onca) with Capybara (Hydrochoerus hydrochaeris) kill, Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.

Lucas Bustamante / Capybara (Hydrochaeris hydrochaeris) with a Giant Cowbird (Scaphidura oryzivora). on back, Tambopata National Reserve, Madre de Dios, Peru.

Luciano Candisani / Jaguar (Panthera onca) playing with baby Capybara (Hydrochoerus hydrochaeris) prey, Pantanal, Brazil

Five Films / Capybara (Hydrochoerus hydrochaeris) feeding, dives under water, Reserva Ecologica de Guapiacu, Rio de Janeiro, Brazil, 2015.

Gabriel Rojo / Tourists on boat, watching capybara (Hydrochoerus hydrochaeris) from boat, Ibera Marshes, Corrientes Province, Argentina

Gabriel Rojo / Capybara (Hydrochoerus hydrochaeris) feeding in water, Ibera Marshes, Corrientes Province, Argentina

Francois Savigny / Wild female Puma (Felis concolor) with capybara (Hydrochoerus hydrochaeris) kill, Llanos, Venezuela, South America

Francois Savigny / Wild female Puma (Felis concolor) with Capybara (Hydrochoerus hydrochaeris) kill, Llanos, Venezuela, South America

Francois Savigny / Wild female Puma (Felis concolor) with Capybara (Hydrochoerus hydrochaeris) kill, Llanos, Venezuela

Francois Savigny / Capybara in swamp {Hydrochoerus hydrochoerus}, Llanos, Hato El Frio, Venezuela, South America

Sebastian Kennerknecht / Capybara (Hydrochoerus hydrochaeris) male grazing in marsh near storm, Ibera Provincial Reserve, Ibera Wetlands, Argentina

Sebastian Kennerknecht / Capybara (Hydrochoerus hydrochaeris) juvenile smelling mother, Ibera Provincial Reserve, Ibera Wetlands, Argentina

Sebastian Kennerknecht / Capybara (Hydrochoerus hydrochaeris) father with juveniles, Ibera Provincial Reserve, Ibera Wetlands, Argentina

Sylvain Cordier / Capybara (Hydrochaeris hydrochaeris), mother nursing two babies, Pantanal, Brazil.

Thomas Marent / Capybara (Hydrochoerus hydrochaeris) in water, Pantanal, Mato Grosso, Brazil

Thomas Marent / Capybara (Hydrochoerus hydrochaeris) group on pond shore, Pantanal, Mato Grosso, Brazil

Thomas Marent / Capybara (Hydrochoerus hydrochaeris) sub-adult and female, Pantanal, Mato Grosso, Brazil

Thomas Marent / Capybara (Hydrochoerus hydrochaeris), Pantanal, Mato Grosso, Brazil

Thomas Marent / Capybara (Hydrochoerus hydrochaeris) young, Pantanal, Mato Grosso, Brazil

Thomas Marent / Capybara (Hydrochoerus hydrochaeris), Pantanal, Mato Grosso, Brazil

Thomas Marent / Capybara (Hydrochoerus hydrochaeris) with Wattled Jacana (Jacana jacana) on its back, Pantanal, Mato Grosso, Brazil

Thomas Marent / Capybara (Hydrochoerus hydrochaeris) running through water, Pantanal, Mato Grosso, Brazil

Thomas Marent / Capybara (Hydrochoerus hydrochaeris) running through water, Pantanal, Mato Grosso, Brazil

Thomas Marent / Capybara (Hydrochoerus hydrochaeris) group running through water, Pantanal, Mato Grosso, Brazil

Barrie Britton / Group of Capybaras (Hydrochoerus hydrochaeris) on riverbank near Port Jofre, Pantanal, Brazil. Taken on location for BBC Wild Brazil series.

Nick Garbutt / Capybara (Hydrochaeris hydrochaeris) suckling her brood of young. Sandbank on the Cuiaba River, Pantanal, Mato Grosso, Brazil.

Nate Chappell/ BIA / Yellow-headed Caracara (Milvago chimachima) on Capybara (Hydrochoerus hydrochaeris), Argentina

Tony Heald / Capybara (Hydrochoerus hydrochaeris) female with young, also with Cattle tyrant (Machetornis rixosa) on her back, Pantanal, Brazil

Pete Oxford / Capybara (Hydrochoerus hydrochaeris), Guyana Zoological Park, Georgetown, Guyana

Pete Oxford / Capybara (Hydrochoerus hydrochaeris), Guyana Zoological Park, Georgetown, Guyana

Luciano Candisani / Capybara (Hydrochoerus hydrochaeris) cooling off in shallow water, Brazil

Wim van den Heever / Yacare caiman (Caiman yacare) with a group of Capybara (Hydrochoerus hydrochaeris) These two species often sit together using each other alert each other to potential danger. Pantanal, Brazil.

Suzi Eszterhas / Capybara (Hydrochaeris hydrochaeris) mother with suckling babies, Pantanal, Brazil.

Suzi Eszterhas / Capybara (Hydrochaeris hydrochaeris) mother and babies, Pantanal, Brazil.

Suzi Eszterhas / Capybara (Hydrochaeris hydrochaeris) mother and babies, Pantanal, Brazil.

Suzi Eszterhas / Capybara (Hydrochaeris hydrochaeris) at surface of water, Pantanal, Brazil.

Claudio Contreras / Capybara (Hydrochoerus hydrochaeris) young, captive.

Gabriel Rojo / Capybara (Hydrochoerus hydrochaeris) swimming in marsh, Ibera Marshes, Corrientes Province, Argentina

Gabriel Rojo / Capybara (Hydrochoerus hydrochaeris) Ibera Marshes, Corrientes Province, Argentina

Gabriel Rojo / Capybara (Hydrochoerus hydrochaeris) in Ibera Marshes, Corrientes Province, Argentina

Pete Oxford / Capybara (Hydrochoerus hydrochaeris) with Wattled jacana (Jacana jacana) on back. Northern Pantanal, Mato Grosso, Brazil.

Pete Oxford / Capybara (Hydrochoerus hydrochaeris) portrait. Northern Pantanal, Mato Grosso, Brazil.

Suzi Eszterhas / Capybara (Hydrochoerus hydrochaeris) mother resting with young, Pantanal, Brazil

Suzi Eszterhas / Capybara (Hydrochoerus hydrochaeris) young yawning and resting on mother, Pantanal, Brazil. Sequence 5 of 5

Suzi Eszterhas / Capybara (Hydrochoerus hydrochaeris) young on mother, Pantanal, Brazil. Sequence 3 of 5

Suzi Eszterhas / Capybara (Hydrochoerus hydrochaeris) young resting on mother, Pantanal, Brazil. Sequence 2 of 5

Suzi Eszterhas / Capybara (Hydrochoerus hydrochaeris) mother and pup, Pantanal, Brazil

Nick Garbutt / Female Capybara (Hydrochoerus hydrochaeris) swimming with young and alarm calling after escaping a Jaguar attack (Panthera onca palustris) in a lagoon off the Paraguay River, Taiama Ecological Reserve...

Ben Cranke / Capybara (Hydrochoerus hydrochaeris) mother suckling her baby. Mato Grosso, Pantanal, Brazil. August.

Ben Cranke / Capybara (Hydrochoerus hydrochaeris) juveniles at the water's edge, Mato Grosso, Pantanal, Brazil. August.

Ben Cranke / Spectacled caiman (Caiman crocodilus) basking on river bank, with two Capybara (Hydrochoerus hydrochaeris), Mato Grosso, Pantanal, Brazil. July.

Ben Cranke / Wattled Jacana (Jacana jacana), Cattle Tyrant (Machetornis rixosa) on Capybara (Hydrochoerus hydrochaeris) Mato Grosso, Pantanal, Brazil. July.

Ben Cranke / Capybara (Hydrochoerus hydrochaeris) walking along the river bank, Mato Grosso, Pantanal, Brazil. August.

Ben Cranke / Capybara (Hydrochoerus hydrochaeris) mother and youngster, together on a river bank, Mato Grosso, Pantanal, Brazil. August.

Ben Cranke / Cattle Tyrant (Machetornis rixosa) perched Capybara (Hydrochoerus hydrochaeris), Mato Grosso, Pantanal, Brazil. July.

Ben Cranke / Capybara (Hydrochoerus hydrochaeris) crossing river with their young, Mato Grosso, Pantanal, Brazil. August.

Ben Cranke / Black-capped Donacobius (Donacobius atricapilla) perched on back of Capybara (Hydrochoerus hydrochaeris) Capybara, Mato Grosso, Pantanal, Brazil. July.

Ben Cranke / Capybara (Hydrochoerus hydrochaeris) portrait, Mato Grosso, Pantanal, Brazil. August.

Sean Crane / Capybara (Hydrochoerus hydrochaeris), Yacuma River, Santa Rosa, Bolivia

Sean Crane / Capybara (Hydrochoerus hydrochaeris), Santa Rosa, Bolivia