What is the suggested role of the Beagle's long, pendulous ears during tracking activities?

Answer

Help sweep scents from the ground up toward their nose

Some experts hypothesize that the physical structure of the long ears assists in sweeping scents located on the ground upward toward the dog's nose while it is actively tracking a trail.

What is the suggested role of the Beagle's long, pendulous ears during tracking activities?
mammalclassificationDogBeagle