Which of the following is a sign of illness in rabbits?

Hiding or lethargy is indeed a significant sign of illness in rabbits. Rabbits are prey animals, which means they often hide symptoms of illness to avoid appearing vulnerable. Therefore, if a rabbit is noticeably less active than usual, spending time in a corner, or showing a lack of interest in engaging with its environment or handlers, these behaviors can indicate that the rabbit is unwell.

Recognizing lethargy is crucial because rabbits can quickly become sick without displaying overt signs until their condition has progressed. In a healthy state, rabbits are typically curious, active, and social, so a sudden change in behavior is a strong indicator that something may be wrong.

The other options do not signify illness. Increased energy suggests health and vitality, a wet nose can be normal depending on the environment or activity level, and finding droppings is typical of a healthy rabbit, as frequent dropping is a sign of a properly functioning digestive system.