13806512 - Essequibo River, Guyana, South America. Longest river in Guyana13806499 - Kaieteur Falls, Guyana. Kaieteur Falls is the world's widest single drop waterfall, located on the Potaro River in the Kaieteur National Park in Essequibo, Guyana13806500 - Kaieteur Gorge, Kaieteur Falls, Guyana. Kaieteur Falls is the world's widest single drop waterfall, located on the Potaro River in the Kaieteur National Park in Essequibo, Guyana13806513 - Guianan Cock-of-the-rock (Rupicola rupicola) at Kaieteur Falls National Park in Essequibo, Guyana, Watercourse, Potaro River71412479 - Kaieteur Falls Guyana, South America, Kaieteur Falls is the world's widest single drop waterfall, located on the Potaro River in the Kaieteur National Park, in Essequibo, Guyana, Height: 741m Elevation: 1,581m Number of drops: 1 Longest drop: 741m, Watercourse: Potaro River71412480 - Kaieteur Falls Guyana, South America, Kaieteur Falls is the world's widest single drop waterfall, located on the Potaro River in the Kaieteur National Park, in Essequibo, Guyana, Height: 741m Elevation: 1,581m Number of drops: 1 Longest drop: 741m, Watercourse: Potaro River71412483 - Essequibo River Guyana, South America, Longest river in Guyana71326338 - Dogtooth characin or Vampire fish,Hydrolycus armatus. It's a predatory fish that lives on Amazon, Orinoco and Essequibo river basins. Occasionally makes its way into the aquarium trade. Growing to more than 3 feet in total length makes it a very highly sought-after food and game fish. The enlarged canine teeth enable them to trap their prey, thus allowing them to hold onto the fish until they can be positioned safely for ingestion, which occurs whole and head-first. From Orinoco River71326337 - Dogtooth characin or Vampire fish, Hydrolycus armatus. It's a predatory fish that lives on Amazon, Orinoco and Essequibo river basins. Occasionally makes its way into the aquarium trade. Growing to more than 3 feet in total length makes it a very highly sought-after food and game fish. The enlarged canine teeth enable them to trap their prey, thus allowing them to hold onto the fish until they can be positioned safely for ingestion, which occurs whole and head-first. From Orinoco River