[SunkenCiv]

The nature of the double helix can be discerned through how the single non-helix gets used...

https://www.buzzfeed.com/crystalro/women-will-outlive-men

[Perseverando]

The nature of the double helix can be discerned through how the single non-helix gets used...

https://www.buzzfeed.com/crystalro/women-will-outlive-men

LOL!! Mrs. P will love those pics. She already believes the men in my family are descended from apes, and not that many generations removed.