James Madison’s home ‘Montpelier’ was being renovated some years ago. On the grounds were trails through a ‘Landmark Forest’ and our Appalachian Trail maintainer crew was asked to come & do some trail repair for them. After we finished, we were given free admission & a tour of the place, which was a nice thank you for our work.
During the house tour, the archeologists told us about finding pack rat nests in the walls of the house. The items in the nests were very interesting because depending on when the rats were taking items, some went back to the early years (house built by Madison’s father in 1760) prior to the Revolution, through the 1800’s, Civil War Era, & into the 1900’s when the Duponts owned the place. The pack rats preserved some historical items in their nests :-)
This Genetically Engineered Petunia Glows in the Dark and Could Be Yours for $29
https://www.scientificamerican.com/article/this-genetically-engineered-petunia-glows-in-the-dark-and-could-be-yours-for-29/