Unit 2 Topic Introduction

This section discusses some historical background and the relative newness and synthetic aspect of commercial pet food.

Topic excerpt:
For centuries, dogs have co-evolved with humans as friends, protectors, co-workers and companions. The proverbial man’s best friend has an ancient history of working, lounging, and dining, alongside humans. They only began eating commercial pet foods around the beginning of the 20th century. Ready for more? Enroll here – pay through PayPal.