Which of the following best describes 'bell ears'?

The characteristic known as 'bell ears' refers specifically to ears that have a distinct fall or lop, defining their shape and appearance. This description captures the essence of how bell ears resemble the shape of a bell, hanging downward rather than standing upright.

In many rabbit breeds, such as the English Lop or the French Lop, this type of ear is celebrated for its unique look and is a significant breed standard feature. Rabbits with bell ears tend to have a softer, more rounded appearance due to this droopy ear characteristic, which contrasts sharply with other ear types that are erect or folded differently.

The mention of stiff and erect ears pertains to a different ear type associated with breeds that showcase a more alert posture, while small and tucked ears relate to breeds known for more compact features. Ears that have thick bases suggest a sturdiness typical of certain breeds but do not align with the soft, downward structure associated with bell ears. The correct answer, therefore, encapsulates the specific visual and structural traits of this ear type in rabbits, reinforcing its recognized role within particular breeds.