Sylvain Cordier / Hyacinth macaws (Anodorhynchus hyacinthinus) squabbling on palm tree, Pantanal, Mato Grosso, Brazil.

Gabriel Rojo / Jaguar (Panthera onca) lying on tree roots, portrait. Mato Grosso, Pantanal, Brazil.

John Shaw / Yacare caiman (Caiman yacare) Cuiaba River, Pantanal, Brazil, August.

John Shaw / Chestnut-eared aracari (Pteroglossus castanotis) on cat-gut vine. Pantanal, Brazil, August.

Suzi Eszterhas / Hyacinth Macaw (Anadorhynchus hyacinthinus) two playing whilst hanging upside down, Pantanal, Brazil

Andy Rouse / Jaguars (Panthera onca) on riverbank , Pantanal, Brazil

Andy Rouse / Jaguar (Panthera onca) resting against tree on riverbank, Pantanal, Brazil

Andy Rouse / RF - Giant Otter (Pteronura brasiliensis) feeding on fish in river, Pantanal, Brazil Medium repro only (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / Jaguar (Panthera onca) hunting along river, Pantanal, Brazil

Andy Rouse / Jaguar (Panthera onca) on riverbank , Pantanal, Brazil

Andy Rouse / Jaguar (Panthera onca) old male hunting in river, Pantanal, Brazil

Andy Rouse / RF- Yacare Caiman (Caiman yacare) cooling off, Pantanal, Brazil (This image may be licensed either as rights managed or royalty free.)

Andy Rouse / RF- Jaguar (Panthera onca) old male hunting on riverbank, Pantanal, Brazil (This image may be licensed either as rights managed or royalty free.)

Nick Garbutt / Toco toucan (Ramphastos toco) acrobatically perched , feeding in forest canopy. Northern Pantanal, Cuiaba River, Mato Grosso, Brazil.

Nick Garbutt / Jaguar (Panthera onca) female running along a sand spit chasing after a caiman. Northern Pantanal Cuiaba River, Mato Grosso, Brazil.

Luke Massey / Seven banded armadillo (Dasypus septemcinctus) Pantanal, Brazil.

Luke Massey / Giant otters (Pteronura brasiliensis) feed on a Golden dorado (Salminus brasiliensis) Pantanal, Brazil.

Luke Massey / Jaguar (Panthera onca) male, Pantanal, Brazil.

Nick Garbutt / Jaguar (Panthera onca palustris), male hunting amongst tree roots at edge of the Cuiaba River. Three Brothers, Porto Jofre, northern Pantanal, Mato Grosso, Brazil. August 2017.

Jeff Foott / Yacare caiman (Caiman yacare) with butterfly on snout, Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.

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...

Jeff Foott / Jaguar (Panthera onca) walking along river bank, Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.

Jeff Foott / Jaguar (Panthera onca) on river bank, Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.

Jeff Foott / Jaguar (Panthera onca) male on riverbank, Cuiaba River, Pantanal Matogrossense National Park, Pantanal, Brazil.

Nick Garbutt / Giant anteater (Myrmecophaga tridactyla) foraging in palm savannah grasslands. Southern Pantanal, Moto Grosso do Sul State, Brazil. September.

Nick Garbutt / RF - Four colourful Red-and-green macaws or Green-winged macaws (Ara chloropterus) in flight over forest canopy. Mato Grosso do Sul, Brazil. September. (This image may be licensed either as rights man...

Michel Roggo / Water hyacinth (Eichhornia sp.) in a clear stream of the Pantanal, Brazil. Photographed for The Freshwater Project. Finalist in the Wildlife Photographer of the Year Awards (WPOY) Competition 2017.

Bence Mate / Grass fire at night in Pantanal, Brazil.

Bence Mate / Two Burrowing owls (Athene cunicularia) fledgling with adult about to take off, Pantanal, Brazil.

Bence Mate / Hyacinth macaws (Anodorhynchus hyacinthinus) interacting, Estrada Parque, Pantanal, Brazil.

Bence Mate / Jacare / Yacare caiman (Caiman crocodilus yacare) two caymans, one with mouth open, Pantanal, Brazil.

Bence Mate / Burrowing owl (Athene cunicularia) fledgling with head on side, Pantanal, Brazil. November.

Bence Mate / Hyacinth macaws (Anodorhynchus hyacinthinus) mutual preening, Estrada Parque, Pantanal, Brazil.

Hermann Brehm / Southern Tamandua (Tamandua tetradactyla) Pantanal, Brazil.

Hermann Brehm / Toco Toucan (Ramphastos toco) , Pantanal, Brazil.

Wim van den Heever / Julia heleconia (Dryas julia) butterfly on head of Yacare caiman (Caiman yacare) Pantanal, Brazil.

Wim van den Heever / Toco toucan (Ramphastos toco) in flight, Pantanal, Brazil.

Wim van den Heever / Giant anteater (Myrmecophaga tridactyla) walking with its baby on the back at twilight, Pantanal, Brazil.

Wim van den Heever / Bare-faced curassow (Crax fasciolata) portrait of female, Pantanal, Brazil.

Kristel Richard / Two cowboys mounted on a Pantaneiro stallion, round up a band of wild Pantaneiro horses, Pantanal, Mato Grosso do Sul, Brazil. August 2015.

Tony Heald / Giant Otter (Pteronura brasiliensis) adult with young in water, Pantanal, Brazil

Tony Heald / Black skimmer (Rynchops flavirostris) fishing by skimming along water surface, Pantanal, Brazil