[Varda]

Sherpa’s also are one the very rare peoples who practice fraternal polyandry (one woman marries brothers). That helps narrow the gene pool perhaps preserving this characteristic.

[Secret Agent Man]

yeah but it turns the family tree into a knot.

[blam]

I have double 1st cousins, two sisters married two brothers. Unfortunately, my cousins were all afflicted with Marfan Syndome.

Me and my brothers and sisters are normal.