Is the Indus River dolphin blind?
The Indus River dolphin, also known as the “bhulan,” is one of the world’s most endangered cetaceans. They are closely related to the Ganges River dolphin, also known as the “susu.” Their eyes are so small that scientists believe they are functionally blind, sensing only the levels and direction of light.
Is blind river dolphin really blind?
They have adapted to life in the muddy river and are functionally blind. They rely on echolocation to navigate, communicate and hunt prey including prawns, catfish, and carp.
Why Sindh dolphins are blind?
The animals have lost their sight through the course of evolution, and find their way through the muddy waters in their habitat using their echolocation systems also known as biosonar. The endangered Indus river dolphin is among four remaining species of freshwater dolphin in the world today.
How many Indus blind dolphins are left?
1,800 individuals
Conservation status It is the second most endangered cetacean in the world. As of 2017 it is estimated that there are only about 1,800 individuals remaining (up from 1,200 estimated in 2001).
Are all dolphins blind?
No, not all species of dolphins are blind. Ocean-going dolphins can see perfectly while certain river-dwelling species of dolphins cannot see perfectly and are completely blind. The Ganges River Dolphin does not have any eyesight.
Where is blind Indus dolphin found?
Indus river dolphin is world’s rarest animal that is an endangered species of Dolphins found in a small area of Indus river near Sukkur town in the central Sindh province of Pakistan.
How many blind dolphins are left?
According to the Worldwide Fund for Nature (WWF), the population of blind dolphins — also known as Indus dolphins — has increased from about 1,300 in 2011 to over 1,800 in 2017, which is a welcome sign.
Which animal in Pakistan will likely become extinct in the future?
According to the Convention on International Trade in Endangered Species (Cites), the common leopard, snow leopard, Ladakh urial, greater spotted eagle, fish eagle, houbara bustard, crowned river turtle, Indian soft-shell turtle and many other mammals, birds and reptiles in Pakistan are ‘vulnerable’.
Why blind dolphins are extinct?
Increasing water diversion for agriculture, the release of untreated industrial sewage, illegal fishing practices and intensive agricultural practices are constant threats to this endangered species, which have already seen their habitat shrink from 3,500 kilometers to merely 1,300 kilometers.
Where are blind dolphins found?
KARACHI, Pakistan Locally known as Bhulan and only found in the River Indus — mainly in a 1,300-kilometer (807 mile ) long stretch between northeastern and southern Pakistan — the mammal is blind because it does not have a crystal eye lens.
How many dolphins are there in Pakistan?
The Indus River dolphin is one of the world’s most endangered freshwater river dolphin. Only about 1,100 of this unique species exist today in the lower parts of the Indus River in Pakistan.
Is there a dolphin in the Indus River?
Waqas, U., Malik, M. I., & Khokhar, L. A. (2012). Conservation of Indus River dolphin (Platanista gangetica minor) in the Indus River system, Pakistan: an overview. Records of the Zoological Survey of Pakistan, 21, 82-85.
What are the threats to the Indus river dolphin?
The major threats to the Indus river dolphin include water-related infrastructure such as dams, barrages and diversions, which cause flow regulation and habitat fragmentation, as well as mortality from entanglement in fishing nets, and pollution from domestic, industrial and agricultural sources 7, 9.
How can WWF help save the Indus river dolphin?
Please try again later. WWF have been protecting and conserving the Indus River dolphin directly by rescuing stranded dolphins and reducing wildlife crime.
What is the rarest animal in the Indus River?
Indus River Dolphin. Indus river dolphin is world’s rarest animal that is an endangered species of Dolphins found in a small area of Indus river near Sukkur town in the central Sindh province of Pakistan.