As humans dispersed from the equator peoples skin got lighter and lighter because of fewer exposure to sun radiation.
They didn't get tanned as much :)
Channel is considered to be a bisexual in terms of her sexual orientation. It is is because a bisexual is someone who could be in love or attracted to either a male or a female. It could be seen above in Channel's dating life as she had a relationship with both male and female and she is currently thinking of marrying her partner which is a female.
The answer is the outer ear... always happy to help people