Octopuses are the oldest inhabitants of the depths, which are believed to have outstanding mental abilities and amazing body structure. The eyes of the octopus have an unusual structure for marine life and sensitivity to light, which allows the mollusk to be the most eyed inhabitant of the ocean.
Octopuses - intellectuals of the deep sea
Octopuses are amazing creatures that are still a mystery to scientists. These creatures invariably attract the attention of ocean scientists with their amazing body structure and unusual mental abilities. It is believed that octopuses, along with cuttlefish and dolphins, are the most intelligent representatives of the marine fauna. However, these creatures are remarkable not only for their mental abilities.
Scientists have long noticed that octopuses have eyes that are unique not only in structure, but also in size relative to body length and visual capabilities. A large brain and huge eyes allow the octopus to receive significantly more information about the world around it than any other animal on the planet. The eyes of the octopus are still the subject of controversy in the scientific community and not all the details of the vision of the world by these animals are understood and studied by humans, but nevertheless, scientists already have some stunning data.
Unique features of octopus eyes
First of all, it should be said that the eyes of octopuses are very large and account for about 10% of the total body weight of the animal. In terms of eye size relative to body weight, octopuses are the real record holders in the animal world. For example, in an adult giant octopus, the size of the eyeball is 35-40 cm.
The anatomical structure of the octopus eye is very similar to the structure of the human eye. The eyes of an octopus are made up of the retina, iris, lens and cornea. The pupil is mobile and can expand and narrow, but the octopus focuses its gaze not due to the curvature of the lens, but due to its approach and distance in relation to the retina.
It is believed that these mollusks are able to focus their gaze on objects of interest to them, which other marine life cannot do. The sensitive retina and lens of the octopus eye perfectly distinguishes colors, even in turbid water. The large size of the octopus's eyes also helps it survive in the ocean, since thanks to this structure of the organ of vision, this mollusk is able to see objects even in pitch darkness.
The unique structure of the octopus's eyes allows it to perceive a three-dimensional picture, so these animals perfectly distinguish the shape of objects. Some lovers of these cephalopods believe that the octopus's visual organs allow it to see even in the ultraviolet spectrum of light, but this data has not yet been scientifically confirmed.
