Eye color is a polygenic phenotypic character determined by two distinct factors: the pigmentation of the iris of the eye, and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris.
In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of melanin in the iris pigment epithelium (located on the back of the iris), the melanin content within the iris stroma (located at the front of the iris), and the cellular density of the stroma. The appearance of blue and green, as well as hazel eyes, results from the Rayleigh scattering of light in the stroma, a phenomenon similar to that which accounts for the blueness of the sky. Neither blue nor green pigments are ever present in the human iris or ocular fluid. Eye color is thus an instance of structural color and varies depending on the lighting conditions, especially for lighter-colored eyes.
Hazel Levesque is a fictional character in The Son of Neptune, the second book of Rick Riordan's The Heroes of Olympus series, where she is one of three narrators. A demigod daughter of Pluto, she resides at Camp Jupiter, a secret camp built to train Roman demigods. She was brought to Camp Jupiter by her half-brother Nico di Angelo, a major character in the Percy Jackson & the Olympians series.
In journalism, a human interest story is a feature story that discusses a person or people in an emotional way. It presents people and their problems, concerns, or achievements in a way that brings about interest, sympathy or motivation in the reader or viewer.
Human interest stories may be "the story behind the story" about an event, organization, or otherwise faceless historical happening, such as about the life of an individual soldier during wartime, an interview with a survivor of a natural disaster, a random act of kindness or profile of someone known for a career achievement.