Why do baby animals have blue eyes?
Like puppies and kittens and some other baby animals I've seen. My baby kittens have blue eyes that are starting to change green. And my goats when they were born had blue eyes. His did't change until he was like 5 wks old. And I think babies have blue eyes too don't they? Whats in eyes that make them blue then change color?
contrary to an above poster, color change has NOTHING to do with any tissue that protects the eyes & covers the real color. it all boils down to melanin production (the pigmentation that puts color in our skin & hair).
http://chemistry.about.com/cs/howthingswork/f/eyecolor.htm
the melanin hasn't fully deposited in the eye's irises when we are born. blue is kind of the default color when there is little pigmentation present. (notice how people who are very pale are more likely to have blue eyes & light hair rather than dark brown of either? it's because they have less melanin/pigmentation all over.) the body deposits melanin in the eyes after birth, and when it collects there, it slowly changes the eye color. exposure to ultraviolet light (something lacking in the dark of a womb) turns it darker as well. it takes several months (usually around 6 months in humans, but may take as long as a year) for the melanin to fully develop and darken in our eyes. it occurs quicker for animals, usually within a few months. the more melanin that collects there, the darker the eyes become. those with little melanin in the eyes keep blue eyes. how much someone will have is generally dictated by genetics...we usually have a similar amount to what our parents have (with darker-eyed genes winning out over light ones).
it is the same for animals as it is for humans. but it is a quicker transformation for them since their body matures quicker overall than ours.
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