So inevitable was the development of vision among motile creatures that it has developed along two different evolutionary pathways: the brain in vertebrates and the epidermis in invertebrates. That’s right, the skin. Among the more primitive jellyfishes, the eyes are … Continue reading →
According to the literature Ipnops is the only vertebrate in which both the eyes and the optic nerves are completely missing. The present investigation has however shown, beyond doubt, that the peculiar organs on the head of Ipnops, which are … Continue reading →
It turns out that humans are highly anthropocentric in how we conceive of vision. The measures that we use tend to be areas where problems in human vision arise: focusing at distant and close range, seeing at night, depth perception, … Continue reading →
Most of us intuitively understand that other animals do not see the world the way we humans do, and we like to imagine how things look from their point of view. It turns out that the ways of seeing are … Continue reading →
Many people compare the eyesight of humans unfavorably to that of other animals, but actually we are quite visual animals with the excellent eyesight that reflects this. True, we cannot see small objects from great distances like the Peregrine Falcon, … Continue reading →
This isn’t so much a review of Thomas R. Quakenbush’s book Relearning to See, considered one of the best books explaining what is called the “Bates Method,” as it is an exploration of how the principles of natural vision have … Continue reading →