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Selasa, 15 November 2011

Amazon River Dolphin

Hi Guys.. I want to explain you about Amazon River Dolphin.. Do you know Amazon river dolphin? If you dont know, lets check it now!

       The Amazon river dolphin, alternatively Bufeo, Bufeo Colorado, Boto Cor de Rosa, Boutu, Nay, Tonina, or Pink Dolphin (Inia geoffrensis), is a freshwater river dolphin of the Amazon River. The species is one of a handful of oceanic and river dolphins included in a paraphyletic clade known as the botos, and is the largest of the river dolphins. Because they are unfused, the neck vertebrae of the Amazon river dolphin are able to turn 180 degrees.
The pink dolphin lives in the freshwater of the Amazon River. This species looks like the grey dolphin, but individuals are bigger, and, instead of a dorsal fin, they have a hump on their back. Their tails are also bigger. The pink dolphin has been listed as endangered by the International Union for Conservation of the Nature due to pollution, overfishing, excessive boat trafficking and habitat loss. The brain of the river dolphin is 40% larger than a human brain.
      
       The Amazon River Dolphin is found throughout the Amazon and Orinoco. It is particularly abundant in lowland rivers with extensive floodplains. During the annual rainy season these rivers flood large areas of forests and marshes along their banks. The Amazon River Dolphin specializes in hunting in these habitats, taking advantage of its unusually flexible neck and spinal cord to maneuver among the underwater tree trunks, and using its long snout to extract prey fish from hiding places in hollow logs and thickets of submerged vegetation. When the water levels drop, the dolphins move either into the main river channels or into large lakes in the forest, and take advantage of the concentrated prey in these reduced water bodies. In the Araguaia wetlands, Amazon River Dolphins give birth during the peak of the flood season (March–April). The young follow their parents closely for a few months, and often two adults are seen swimming with two or more small juveniles.

       The Amazon river dolphin has about 100 peg-like front teeth for catching prey and eats crustaceans, crabs, small turtles, catfish, piranha, shrimp, and other fish.

       Although not a large cetacean in general terms, this dolphin is the largest cetacean to spend most of its life in freshwater and can grow larger than a human. Body length can range from 1.53 to 2.4 m (5.0 to 7.9 ft), depending on subspecies. Females are typically larger than males. The largest female Amazon river dolphins can range up to 2.5 m (8.2 ft) in length and weigh 98.5 kg (217 lb). The largest male dolphins can range up to 2.0 m (6.6 ft) in length and weigh 94 kg (210 lb). Wow! It's really more than human size, right!

       The Amazon River dolphin is listed on appendix II of the Convention on the Conservation of Migratory Species of Wild Animals (CMS). It is listed on Appendix II as it has an unfavorable conservation status or would benefit significantly from international co-operation organized by tailored agreements.


this is the pink dolphin that is emerging on the surface of the water

as this is the body shape of the pink dolphin


Now you already know about the Amazon river dolphin, right. So, the Amazon river dolphin as the pink dolphin. You know pink dolphin? The dolphin which the skin color is pink. That's all about Amazon River Dolphin or Pink Dolphin.Ok, hopefully this can add your insight..^^

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