Designed by
Title
Vintage illustration of Busy Beavers at Work. #179213169
Description
The New Book of Knowledge Encyclopaedia 1930s / 1940s - Social History. The beaver is a large, primarily nocturnal, semiaquatic rodent. Castor includes two extant species, the North American beaver and Eurasian beaver. Beavers are known for building dams, canals, and lodges. They are the second-largest rodent in the world.
This image is editorial