What physical feature aids the Otterhound's ability to swim long distances?
Answer
Webbed feet.
The breed is physically equipped for water work, possessing webbed feet, a waterproof coat, a broad chest, and powerful shoulders suitable for long-distance swimming.

Related Questions
What is the baseline requirement for daily vigorous exercise for an adult Otterhound?Why must Otterhounds almost universally be kept securely leashed outside fenced areas?What essential purpose does the Otterhound's shaggy facial hair serve?Which historical event led directly to a sharp decline in the Otterhound population?How does separation anxiety commonly manifest in an Otterhound left alone?Which hereditary condition specific to Otterhounds is a rare, inherited bleeding disorder?What physical feature aids the Otterhound's ability to swim long distances?Due to their historical function in cohesive groups, how is the Otterhound's temperament generally described?What characteristic of the Otterhound's undercoat requires specific grooming attention?Which English monarch is noted in history for keeping a pack of Otterhounds?