Yes!
Semen is normally a milky white or cream color.
Semen
Not every ones teeth are white, not everyone is 6' tall or white or blond or Brown eyed. Why would you expect everyone to have white semen? Semen is what it is, it is part genetics, part diet, part metabolism. You may get white semen & you may not, but it is ridiculous to think that you are going to change it. White semen is no more productive than other colors.
No they can not change colors
The Phosphorus change colors is Chameleons.
No. Semen does not change color when it lands on a surface, unless that surface is paint.
That is normal. The sperm changes color a little and consistency as the enzymes in the semen change.
No. All the colors that the eye can see are there, so there are no others to change to.
sea horses can change to all of the colors of the rainbow
Because they need to hide there self from enimies.
Absolutely not!!! Scorpions can not change colors like chameleons.
Not necessarily. Men who take daily multi-vitamin supplements can have colored (yellow/orange) semen if the ejaculate within a few hours after taking the vitamins. If memory serves, it is ithe B vitamin that colors urine and/or semen. Consult a urologist.
They change because......