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SPOT THE HUMAN: THE INCREDIBLY DETAILED PHOTOS THAT REVEAL ANIMAL EYES IN EXTREME CLOSE-UP
Daily Mail, UK
May 6 2013
Collection includes hyena, python, tiger and monkey eyes Photographer
Suren Manveylan took the shots at Yerevan Zoo in Armenia
By VICTORIA WOOLLASTON
Could you tell the difference between a human eye and the eye of a
tiger python, or a lemur?
This is the premise behind Armenian photographer Suren Manvelyan's
latest collection, which features extreme close-up images showing
eyes of animals, birds and reptiles.
The collection includes rodents, hyenas, lemurs, monkeys, tiger
pythons, cats, dogs, snakes, birds, a fox and even a flying possum.
Each of the photos in Manveylan's collection show the complex surface
of individual animal eyes.
Many of Manveylan's images were taken of animals in captivity at
Yerevan Zoo in Armenia.
Manveylan's Animal Eyes collection was a follow-up to his Your
Beautiful Eyes series which features extreme close-up images of
human eyes.
Although the eyes look different, they work in a very similar way to
human eyes.
The main parts of the eye include the cornea, pupil, iris, retina
and radial and sphincter muscles.
When the animals look around, the light reflected from different
objects enter their eyes through the transparent cover called the
cornea.
The light then travels into the eye through the pupil.
The pupil is the black circular part in the centre of your eyeball.
The varying pupil shapes and sizes of the animals in Manveylan's
collection is determined by where in the world they live and how much
sunlight they get.
It also depends on whether they are nocturnal or not.
Radial fibres within the iris - the coloured part of the eye- pull
the pupil open when it's dark to let more light in and make it easier
to see in low-light conditions.
Nocturnal animals, such as the Fennec fox, have larger pupils to make
easier to see at night.
Sphincter fibres help the pupil contract to restrict how much light
enters the eye in bright conditions.
Husky dogs live in very bright conditions in the Arctic, so their
pupils are smaller.
The lens focuses the light onto the back of the eye called the retina.
The retina is made of thousands of light-sensitive neurons, called
photoreceptors, which change light signals into electrical ones.
These electrical signals are then sent to the brain along the optic
nerve and the brain processes what it's looking at in the visual
cortex.
When you look at an object it is projected onto your retina upside
down.
Your brain then turns it the correct way up.
There are some differences, however, depending on the species.
For example, lemurs can only see in black and white so use their
sense of smell to choose which food to eat.
And husky dogs can have different coloured eyes because of a condition
called heterochromia.
View photos at
http://www.dailymail.co.uk/sciencetech/article-2320191/Eye-tiger-Incredibly-detailed-photos-animal-eyes-look-extreme-close-up.html
Daily Mail, UK
May 6 2013
Collection includes hyena, python, tiger and monkey eyes Photographer
Suren Manveylan took the shots at Yerevan Zoo in Armenia
By VICTORIA WOOLLASTON
Could you tell the difference between a human eye and the eye of a
tiger python, or a lemur?
This is the premise behind Armenian photographer Suren Manvelyan's
latest collection, which features extreme close-up images showing
eyes of animals, birds and reptiles.
The collection includes rodents, hyenas, lemurs, monkeys, tiger
pythons, cats, dogs, snakes, birds, a fox and even a flying possum.
Each of the photos in Manveylan's collection show the complex surface
of individual animal eyes.
Many of Manveylan's images were taken of animals in captivity at
Yerevan Zoo in Armenia.
Manveylan's Animal Eyes collection was a follow-up to his Your
Beautiful Eyes series which features extreme close-up images of
human eyes.
Although the eyes look different, they work in a very similar way to
human eyes.
The main parts of the eye include the cornea, pupil, iris, retina
and radial and sphincter muscles.
When the animals look around, the light reflected from different
objects enter their eyes through the transparent cover called the
cornea.
The light then travels into the eye through the pupil.
The pupil is the black circular part in the centre of your eyeball.
The varying pupil shapes and sizes of the animals in Manveylan's
collection is determined by where in the world they live and how much
sunlight they get.
It also depends on whether they are nocturnal or not.
Radial fibres within the iris - the coloured part of the eye- pull
the pupil open when it's dark to let more light in and make it easier
to see in low-light conditions.
Nocturnal animals, such as the Fennec fox, have larger pupils to make
easier to see at night.
Sphincter fibres help the pupil contract to restrict how much light
enters the eye in bright conditions.
Husky dogs live in very bright conditions in the Arctic, so their
pupils are smaller.
The lens focuses the light onto the back of the eye called the retina.
The retina is made of thousands of light-sensitive neurons, called
photoreceptors, which change light signals into electrical ones.
These electrical signals are then sent to the brain along the optic
nerve and the brain processes what it's looking at in the visual
cortex.
When you look at an object it is projected onto your retina upside
down.
Your brain then turns it the correct way up.
There are some differences, however, depending on the species.
For example, lemurs can only see in black and white so use their
sense of smell to choose which food to eat.
And husky dogs can have different coloured eyes because of a condition
called heterochromia.
View photos at
http://www.dailymail.co.uk/sciencetech/article-2320191/Eye-tiger-Incredibly-detailed-photos-animal-eyes-look-extreme-close-up.html