Best River Ray
The Xingu river ray, commonly called the polka-dot stingray, is a freshwater stingray of the family Potamotrygonidae, associated with the Xingu River basin in Brazil. Its dark disc is covered with contrasting pale spots, a pattern that distinguishes it from many other South American river rays. Like...
The tiger stingray is the common name for Potamotrygon tigrina, a freshwater ray in the family Potamotrygonidae. It is native to the upper Amazon basin in Peru, and its name refers to the orange-and-black coloration and banded tail that distinguish it from other South American river stingrays; the s...
The ocellate river stingray (Potamotrygon motoro) is a species of freshwater cartilaginous fish native to the Amazon, Orinoco, and Paraná river basins in South America. It is characterized by a circular, flattened disc covered in distinctive orange or yellow spots ringed with black, known as ocelli,...
The Chao Phraya is Thailand's principal river, formed by the confluence of the Ping and Nan rivers at Nakhon Sawan. It flows south through the country's central plain and Bangkok before reaching the Gulf of Thailand near Samut Prakan. The river supports agriculture, urban water supplies, inland tran...
The tiger river ray (Potamotrygon tigrina) is a large freshwater stingray endemic to the blackwater rivers of the upper Amazon basin in Peru. It is highly distinctive due to its dark dorsal coloration contrasted by vivid, yellowish-orange reticulated patterns that resemble tiger stripes. As a benthi...
The ocellate river ray (Potamotrygon motoro) is a widely distributed species of freshwater stingray native to South America. It inhabits the calm, shallow waters of the Amazon, Orinoco, and Paraná river basins. The species is recognized for the distinctive orange or yellow-ringed dark spots covering...
The Long-tailed River Stingray, scientifically known as Potamotrygon histrix, is a species of freshwater stingray native to the river basins of South America, including the Amazon and Paraná-Paraguay systems. It is physically distinguished by its relatively small, circular disc and a disproportionat...
Henlei's river ray (Potamotrygon henlei) is a large, venomous freshwater stingray strictly endemic to the Tocantins-Araguaia river basin in Brazil. It is easily recognized by its dark brown or black disc, which is decorated with distinct white or yellowish spots. Like other members of the Potamotryg...
The hystrix river stingray is the freshwater stingray Potamotrygon hystrix, a member of the family Potamotrygonidae. It occurs in South American river systems and has a flattened disc, a long tail, and defensive serrations or spines associated with the tail and body surface. Like other river stingra...
The porcupine river stingray is a species of freshwater fish native to the river systems of South America, particularly within the Amazon and Orinoco basins. It is physically distinguished from other stingrays by the dense, thorny denticles and sharp tubercles covering its dorsal surface and tail, g...
The term Amazon river ray refers to freshwater stingrays of the family Potamotrygonidae that inhabit rivers and connected floodplain waters in the Amazon Basin. These batoid fishes retain the flattened disc, spiracles, and venomous tail spine typical of stingrays, but complete their life cycles in f...
The Magdalena River Stingray is a species of freshwater ray strictly endemic to the Magdalena River drainage basin in Colombia. As a member of the family Potamotrygonidae, commonly known as river stingrays, it has adapted to a purely freshwater environment. It holds the distinction of being the only...
The Chao Phraya River is the major river in Thailand, formed by the confluence of the Ping and Nan rivers and flowing south through Bangkok to the Gulf of Thailand. It is historically notable as the birthplace of the Siamese civilization and served as the center for several historical kingdoms, incl...
The Gray Sanddragon (*Progomphus borealis*) is a species of dragonfly belonging to the clubtail family, Gomphidae. It is native to western North America, where it typically inhabits areas near clear, sandy streams and rivers. The species' aquatic larvae are distinguished by their habit of burrowing...
The Paraná river stingray is a freshwater stingray associated with the Paraná River basin in South America. Unlike marine stingrays, it completes its life cycle in rivers and other inland waters, where its flattened disc, ventral mouth, and defensive stinging spine support a bottom-dwelling existenc...
Raymond Sommer was a French racing driver who competed in Grand Prix and sports-car racing before and immediately after the Second World War. He shared victory with Luigi Chinetti in the 1932 24 Hours of Le Mans and won the race again in 1933 with Tazio Nuvolari. In the inaugural Formula One World C...
The Murray River is the longest waterway in Australia, spanning approximately 2,508 kilometers across the southeastern region of the continent. It forms the natural border between the states of New South Wales and Victoria before flowing westward into South Australia and draining into the Southern O...
The Magdalena river ray (Potamotrygon magdalenae) is a freshwater stingray endemic to the Magdalena and Sinú river basins of Colombia in South America. This species belongs to the family Potamotrygonidae, which consists exclusively of freshwater stingrays found in South American rivers. Like other m...
