Which symptom is most indicative of sarcoptic mange in wild canids?

• A. Lethargy
• B. Hair loss
• C. Skin irritation
• D. Weight loss

Answer: (B)

The key idea is that sarcoptic mange causes intense itching leading to hair loss, so alopecia is the most distinctive sign in wild canids. The mites provoke severe pruritus, and the animal scratches and rubs itself, resulting in patchy or diffuse hair loss often with crusting around the face, ears, and limbs. Other signs like lethargy, weight loss, or general skin irritation can occur with illness or secondary infections, but they are not as specific to mange as hair loss. So, noticing hair loss provides the strongest indication of sarcoptic mange in wild canids.