<P> Eye color in non-human animals is regulated differently . For example, instead of blue as in humans, autosomal recessive eye color in the skink species Corucia zebrata is black, and the autosomal dominant color is yellow - green . </P> <P> As the perception of color depends on viewing conditions (e.g., the amount and kind of illumination, as well as the hue of the surrounding environment), so does the perception of eye color . </P> <P> Most new - born babies who have European ancestry have light - colored eyes . As the child develops, melanocytes (cells found within the iris of human eyes, as well as skin and hair follicles) slowly begin to produce melanin . Because melanocyte cells continually produce pigment, in theory eye color can be changed . Adult eye color is usually established between 3 and 6 months of age, though this can be later . Observing the iris of an infant from the side using only transmitted light with no reflection from the back of the iris, it is possible to detect the presence or absence of low levels of melanin . An iris that appears blue under this method of observation is more likely to remain blue as the infant ages . An iris that appears golden contains some melanin even at this early age and is likely to turn from blue to green or brown as the infant ages . </P> <P> Changes (lightening or darkening) of eye colors during early childhood, puberty, pregnancy, and sometimes after serious trauma (like heterochromia) do represent cause for a plausible argument stating that some eyes can or do change, based on chemical reactions and hormonal changes within the body . </P>

Who do we get our eye color from