In the world of birds, usually males are more colorful or ornamented than females. The explanation for this is sexual selection (traits that help one gender to be successful). This phenomenon, allows to males to compete with other males. For example, more colorful males might seem more dangerously. On the other hand, ornaments and colors of male birds can attract the attention of females.
Silent mutations are base substitutions that result in no change of the amino acid or amino acid functionality when the altered messenger RNA (mRNA) is translated.
