Amazon River Dolphin

Amazon river dolphin

The Amazon river dolphin, also known as the boto, bufeo or pink river dolphin, is a species of toothed whale endemic to South America and is classified in the family Iniidae. Three subspecies are currently recognized: I. g. geoffrensis, I. g. boliviensis and I. g. humboldtiana. The position of the Araguaian river dolphin within the clade is still unclear. The three subspecies are distributed in the Amazon basin, the upper Madeira River in Bolivia, and the Orinoco basin, respectively.

River dolphin

River dolphins, also called freshwater dolphins, are a polyphyletic group of fully aquatic mammals that reside exclusively in freshwater or even in brackish water. They are an informal grouping of dolphins, which itself is a paraphyletic group within the infraorder Cetacea. These dolphins are placed in three superfamilies, Platanistoidea (Platanistidae), Inioidea and Lipotoidea (Lipotidae). They comprise the families Platanistidae, the possibly extinct Lipotidae, Iniidae and Pontoporiidae. There are five extant species of river dolphins. River dolphins, alongside other cetaceans, belong to the clade Artiodactyla, with even-toed ungulates, and their closest living relatives the hippopotamuses, from which they diverged about 40 million years ago. Specific types of dolphins can be pink.

Amazon River

The Amazon River in South America is the largest river in the world by discharge volume of water, and the second-longest or longest river system in the world, a title which is disputed with the Nile.

River

A river is a natural stream of fresh water that flows on land or inside caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of its course if it runs out of water, or only flow during certain seasons. Rivers are regulated by the water cycle, the processes by which water moves around the Earth. Water first enters rivers through precipitation, whether from rainfall, the runoff of water down a slope, the melting of glaciers or snow, or seepage from aquifers beneath the surface of the Earth.

amazon

Noun

1. A tall, strong, athletic woman.
2. A fairy chess piece which combines the moves of the queen and the knight.

river

Noun

1. A large and often winding stream which drains a land mass, carrying water down from higher areas to a lower point, oftentimes ending in another body of water, such as an ocean or in an inland sea.
2. Any large flow of a liquid in a single body.

Verb

1. To improve one’s hand to beat another player on the final card in a poker game.

dolphin

Noun

1. A carnivorous cetacean, typically with a beak-like snout, famed for their intelligence and occasional willingness to approach humans.
2. Tursiops truncatus, (Atlantic bottlenose dolphin) the most well-known species.

Noun

1. A man-made semi submerged maritime structure, usually installed to provide a fixed structure for temporary mooring, to prevent ships from drifting to shallow water or to serve as base for navigational aids.