Rare two-headed baby copperhead found in Virginia

A two-headed copperhead snake was found in a yard. Each head has its own brain, trachea, and esophagus, but they share a heart and lungs. Scientists suggest the right head should eat due to anatomical reasons, but the left head is more dominant. Two-headed snakes are rare and often struggle with coordination, leading to shorter lifespans.

What is the significance of the shared heart and lungs in the two-headed snake?

How does the anatomy of the two-headed snake affect its feeding behavior?