1.   Some, like the almost totally blind Ganges river dolphin, are quite rare.

2.   Blind dolphins found in two Indian rivers are being wiped out by farm chemicals, fine nylon fishing nets and dams, a zoologist said Tuesday.

3.   Blind dolphins that live in two Indian rivers are being wiped out by farm chemicals, fishing nets and dams, a zoologist said Tuesday.

4.   The River Indus blind dolphin is under threat of extinction due to changes in its ecosystem and poor water management, a conservationist said here Monday.