Some observations correlate with this theory, for example, that males tend to be pinker than females (they fight more between them, displaying intra-species aggression).
#Pink river dolphin skin#
It is not entirely clear why they have this color but one of the strongest hypothesis says it’s due to the repeated abrasion of the skin surface. Adults can display a range of colors from light gray to pink (varying from solid to mottled) and even brownish. Young dolphins have a dark gray color, which in adolescence transforms into light gray. The color of their bodies varies with age. And finally, the melon on their heads, which they can modify by muscular control for using it as a Biosonar (or Animal echolocator) Are Pink Dolphins really Pink?ĭepends. It is curious tho, that they are the only toothed whales to have different types of teeth in their jaw. Between 25-28 pairs of teeth to each side of both jaws helps them capture fish, tortoises or crabs. They have small eyes, but good eyesight, in and out of the water. In his head we found quite a few interesting things, so for the ones of you digging this article for your homework, keep reading! You can see the way they swim and move in this video put up by National Geographic. This, in conjunction with large pectoral fins, gives them very good maneuverability to swim through the flooded forest searching for their prey. Their cervical vertebrae are not fused, allowing the head to turn 90 degrees to each side. Amazon Pink River Dolphin – Boto – Inia geoffrensis In contrast with other cetaceans, in this case, the male is bigger than the female. With the adult males reaching an average length of 2.3 metres (7.6 ft) and an average weight of 150 kilograms (340 lb), and the females reaching a length and weight of 2 metres (6.6 ft) and average 100 kilograms (220 lb), they will not pass unseen by your side if you are navigating in their habitat. Distribution of Pink Dolphin sub-species in South America How does a Pink Dolphin look? Can you show me one?
The pink dolphin is the biggest of all river dolphins. gangetica), predominant in India, and Indus river dolphin (P. They seem to have some relationship with their South Asian counterparts, the Ganges river dolphin (P. boliviensis) and Orinoco river dolphin (I. Pink dolphins (Inia geoffrensis) are a species of Toothed whales classified in the family Iniidae and it contains three sub-species: Amazon river dolphin (I. It inhabits South America, mainly in the Amazon river, but also in the Orinoco basin and Madeira river. The Amazon river dolphin, pink dolphin or Boto is a freshwater dolphin.
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