How does growing up without a father?

Growing up without a father could permanently alter the structure of the brain and produce children who are more aggressive and angry, scientists have warned. Children brought up only by a single mother have a higher risk of developing deviant behaviour, including drug abuse, new research suggests.

Does eye color come from mom or dad?

Whether eyes are blue or brown, eye color is determined by genetic traits handed down to children from their parents. A parents genetic makeup determines the amount of pigment, or melanin, in the iris of the his or her childs eye. With high levels of brown melanin, the eyes look brown.