Photo by RIZWAN TABASSUM/Getty Images.
Photo by RIZWAN TABASSUM/Getty Images.

The Indus River dolphins may not be as beloved as their more famous cousins, but they are at a much higher risk of disappearing.

These animals, which weigh up to 200 pounds and can grow up to 8.5 feet long, are found only in the freshwater Indus River in South Asia. They have small, poorly-developed eyes that lack a crystalline lens, which make them practically blind to their surroundings. As an adaptation, they navigate the muddy waters of the Indus River relying solely on echolocation.

With just about 1,100 Indus River dolphins left on the planet, these gentle creatures are considered to be one of the world’s most endangered groups of animals. Their population numbers went down drastically after an irrigation system was built and they continue to be hunted by local fisherman for bait, meat and medicine.

Drawing from 1927 via Wikipedia
Drawing from 1927 via Wikipedia

The biggest challenge to saving animals like thisĀ elusive dolphin is lack of knowledge. They have not been widely studied and there is very little literature about them.

Researchers are taking an especially close look at the Indus River dolphin because they don’t want the same fate of the Yangtze River dolphin to fall on them. The Yangtze River dolphin hasn’t been spotted for decades and it believed to be extinct, but its decline and disappearance was so quick that conservationists didn’t have time to act.

Watch the video below to learn more about these rare river cetaceans…