Karankawa people and Gender Roles.

One unusual aspect of the Karankawa culture was their distinction in having three gender roles: male, female, and a third role taken on by some males and women in this type of tribe. Males who took on this third role are called berdache generally took on female roles and activities in daily life, while playing a special role in religious rites.  According to some accounts, the berdache were passive sexual partners for the other males.