Peacocks
Males with big tails are liked by females and chosen to mate
History of Peacocks
Not all peacocks had large, bright tails thousands of years ago. The certain males with tails that were more desired by females were able to reproduce and pass on the traits for big, colorful tails.
Females were attracted to brighter tails
This became an example of natural selection because the male peacocks with bigger and brighter tails were selected by female peacocks
Natural Selection Factors
Genetic Variation
The tail colors and size of male peacocks tails varied because some genetic makeups called for big, bright and colorful tails while other genetic makeups called for small, dull tails
Competition
The less fortunate male peacocks with boring tails had to compete with the other male peacocks to reproduce and came up less successful
Reproduction
The male peacocks with fancy tails reproduced and passed on the genes for nicer tails
Future Peacocks
Male peacocks will continue to pass on the trait bright, nice tails and female peacocks will continue to prefer the males that stick out with big, beautiful tails.