Cronon 7

the European settlers had domestic animals, once they could import them and keep them alive

cattle were owned even if they ran wild, this was somewhat less true for hogs
stone wall in second growth woods

fencing crop land sufficiently to protect it from cattle and hogs was not easy

wild hogs hear a cornfield
cattle were an important cash crop and had a significant impact on farming patterns and ecology

Plowed cropland was a very different new ecosystem