Human eyes can appear brown, blue, green or hazel, depending on how much melanin is concentrated in the iris, though this appearance is something of a natural magic trick: green and blue pigments do not occur naturally in the iris; this colouration occurs as a result of light scattering. Think of this scattering in the way that light alters our perception of colour when striking certain metals; the way a car may appear blue from one angle, purple from another, and even green, depending on the angle and intensity of the sun.
Other animal species, such as birds, have more iris pigmentation than humans and thus these species exhibit a greater range of eye colours. Exceptionally complex, eye colour has been linked to as many as 15 genes and while inheritance traits are traceable to a certain extent, human offspring can exhibit nearly any eye colour combination, regardless of parent pigment profiles. But for all the eye’s complexity and beauty, scientists still don’t fully understand why eyes exhibit such great variation in colour.
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Denne historien er fra AG 158-utgaven av ASIAN Geographic.
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A Spectrum Of Scarlet: The Symbolic Red Of Asian Flags
A common thread that unites many Asian flags is the prominent use of red, a colour rich with symbolism
Curry: A World of Flavour, Tradition, and Culture
From its humble beginnings in India, the concept of "curry" has evolved into a culinary language understood around the world
The Power Of Asian Red Fruits - Discover 10 Nutrient-Rich Gems Of The East
In the vast tapestry of Nature, Asia has gifted the world an array of unique and vibrant fruits, particularly those in shades of red. These scarlet-hued gems, packed with flavour and nutrients, not only add a burst of colour to your plate but also carry valuable health benefits. From antioxidant-rich goji berries to the exotic dragon fruit, let's explore some of the most popular red fruits from Asia and discover why they should be part of your diet.
Bhutan: A World Of Its Own
With its majestic monasteries, red-robed monks, charming rural villages, and vibrant festivals, the Kingdom of Bhutan is a Himalayan paradise that promises an enriching travel experience like no other
Take The Red Pill
From the vermilion torii gates of Japan to the famed rust-hued walls of India's Agra Fort, the burgundy robes of Burmese monks to scarlet chillies drying in the Bangladeshi sun, red is the quintessential colour of Asia.
70 Days for Our Land Animals
Raising awareness about conservation, the environment, and the land-dwelling species of the world
The Red Panda
Meet the elusive guardian of the Eastern Himalayas
Revealed Doctor Yellow
Japan Railways' special lemony Shinkansen is a rare sight to behold
The Mighty Yellow
Over 5,000 kilometres long and flowing through nine provinces and autonomous regions, the Yellow River is China's second largest, after the Yangtze, while its basin is deemed the cradle of Chinese civilisation
Wildlife Big Yellow Beauty
The popular "amelanistic" form of the Burmese python is considered among the most beautiful snakes - if that's your sort of thing
