Final answer:
Modern dogs' earliest ancestors were found in Asia, indicated by forensic DNA examination. This discovery aligns with the pattern of domesticated dogs' migration with humans.
Step-by-step explanation:
The earliest known ancestors of modern dogs were found to have occurred in Asia. Forensic DNA examination has unearthed fascinating insights into the domestication and migration of dogs.
Through the study of ancient canines, we've learned that these animals accompanied humans in their migrations around the world. While human ancestry research suggests a descent from Africa, the genetic evidence for the domestication and spread of dogs points towards Asia as their origin before spreading with migrating humans.