What intense, localized selection pressure separated the American coonhound line from its English Foxhound forebears?

Answer

Favoring endurance and voice over pure athleticism

The localized selection pressure in America favored endurance and voice (the bawl or chop) over pure athleticism, which distinguished the American coonhound line from its English Foxhound ancestors.

What intense, localized selection pressure separated the American coonhound line from its English Foxhound forebears?
DogbreedCoonhoundancestor