They adapt to life in muddy rivers and are functionally blind. They rely on echolocation to navigate, communicate and hunt prey such as shrimp, catfish and carp.
Are Indian dolphins blind?
The Indus river dolphin (Platanista gangetica minor), locally known as Boulan, is one of the eight freshwater dolphins currently in existence in the world. These dolphins, found in freshwater sources such as rivers, cannot survive in salt water like marine dolphins. These dolphins are blind and depend on echolocation. 2020
Are river dolphins blind?
The Ganges dolphins can only live in freshwater and are essentially blind. They can emit ultrasonic waves to hunt, bounce off fish and other prey, and "see" the image in their heads.
Are Indus river dolphins blind?
The Indus river dolphin (Platanista gangetica minor), locally known as Boulan, is one of the eight freshwater dolphins currently in existence in the world. These dolphins, found in freshwater sources such as rivers, cannot survive in salt water like marine dolphins. These dolphins are blind and depend on echolocation.
Why are dolphins on the Ganges blind?
Like other river dolphins that have evolved these properties convergently, they are largely independent of sight due to the muddy water in which they live, resulting in a small lensless, I have eyes that don't work.
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