Animal Sight Problems:Myopic Like a Mole, Really?
You have surely heard this expression a lot: to be myopic like a mole . If we understand what this means for us humans, what is it really for the moles Are they really so myopic We will in this article be interested in thea vision of our animal friends , whether domestic or wild.
Vision and sight problems
It is true that some animals can lose part of their sight (for those who already have good vision) following an accident, for example. But it is rare that this is hereditary: natural selection plays its role, the weakest animals would not survive. For our friends the pets (the others are our friends too!), it's different. As natural selection and the law of the strongest no longer apply, they can develop vision disturbances and it can become hereditary. Animals are therefore, just like us, susceptible to visual problems.
Although pets can suffer from vision problems, including cataracts, like us, you will never see animals with glasses, even 3D printed And that's a shame !
That they can see in the night (nyctalope, promise that's not a bad word!) or by day (mainly diurnal animals), animals have a general vision that is adapted to the environment in which they evolve but also to their place in the animal kingdom and in their food pyramid. Predators like cats and dogs, for example, have a more efficient vision than many animals, including us, to detect movement and see at night. On the other hand, their visual acuity (their ability to distinguish details) is less good than ours.
Color perception and visual field
You may have heard that animals see in black and white well ... that's wrong. Even though at night all cats are gray, what is true is that they distinguish colors in a different way than we do, especially red. As said above, their ability to perceive light is much better than us, because their retina is very rich in sticks and therefore it is for this reason that it sees even at night.
Another interesting element about the sight of animals is the placement of their eyes and therefore their visual field ensuing. Preys often have their eyes positioned to the side, which allows them to have a wider vision and therefore better monitor the surroundings, unlike predators who have a smaller field of vision but eyes on the front, more efficient.
And the mole in it all?
Reptiles, insects and fish all have different views and adapt to their environment. Humans have a very generalist vision that allows them to see in many situations: at night, underwater And the mole in all of this As incredible as it may seem, this little mammal is born with aune impeccable view ! It is because they live mainly underground that they lose their visual acuity and end up becoming blind. Moles therefore use smell, hearing and touch to orient themselves!