A rat nest preserved for over 200 years under the floorboards of a historic Philadelphia house contains thousands of plants that help archaeologists understand daily life in colonial America. One archeologist pored through 11 pounds of material from the nest. 

The Conversation
I study rat nests − here’s why rodents make great archivists
An archaeologist reveals what she learned from sifting through a 200-year-old rat nest recovered from a historic Philadelphia home.






