Karachi, Pakistan Locally known as Boulan, it can only be found on the Indus River. It is primarily 1,300 km (807 miles) long between northeastern and southern Pakistan. Mammals are blind because they do not have crystal eyes. lens. The 22nd. 2017 г.
Are Indus river dolphins blind?
The Indus river dolphin, also known as the "Boulan," is one of the most endangered cetaceans in the world. They are closely related to the Ganges dolphins, also known as soot. Their eyes are so small that scientists believe they are functionally blind and only sense the level and direction of light.
Why are dolphins blind?
Receptor cells, pyramidal cells, and rod cells are all responsible for providing animals with the tools they need to see and detect color. The low number of pyramidal cells is thought to be associated with limited or near-complete color vision deficiency, with dolphins having fewer pyramidal cells than terrestrial mammals such as humans. ..
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