Optical Fun: Rhino Vision

Save The Rhino Day is May 1 and World Rhino Day is celebrated September 22. We have this day because due to loss of habitat and poaching, the numbers of Rhinos are rapidly decreasing with 3 out of 5 species are critically endangered.. In fact in 2016, the Black Rhino was officially declared extinct. South Africa is losing one Rhino every 18 hours. Vietnam’s last Javan Rhino became extinct in 2010, when the last Rhino was shot and horn hacked off.

For those who are not aware: Poaching occurs because Asian Medicine values Rhino Horn for medicine, saying that it can cure cancer and other ailments. Rhino horns can go up to $25,000 a pound. The African Rhino horn can weigh up to 6.5 pounds and the white Rhino can weigh up 8.8 pounds. Asian Rhinos are smaller and weigh from 1-2 pounds.

As much as we hate poachers, we are honoring Rhinos today with a little optical fun.

OF-Rhinojpg

Rhino Eye Bogglers:

  • Rhinos have a fantastic sense of smell and hearing.
  • Rhinos are known to have poor eyesight – although a recent anatomical study of the black rhino’s retina at an Australian university suggests that the human form should be detectable at nearly 200 meters – 10 times the distance previously suspected.
  • Rhino eyes are on the side of the head which means they don’t have binocular vision
  • Rhinos are color blind.
  • Recent anatomical studies of the black rhino’s retina indicate that this species’ vision may be as good as a rabbit’s, and is probably better than that of seals, dolphins, bats and rats.
  • Watch a National Geographic Video on Testing Rhino Vision

I don’t mean to put graphic photos up, but I hate poachers.

The corpse of a slaughtered rhino in a national park in South Africa. (Photo courtesy South African Communication and Liaison Services of the Office of the National Commissioner)

The corpse of a slaughtered rhino in a national park in South Africa. (Photo courtesy South African Communication and Liaison Services of the Office of the National Commissioner)

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