Which of the following is a common sign of dehydration in dogs?

Lack of skin elasticity is a common sign of dehydration in dogs. When a dog is properly hydrated, the skin retains its normal elasticity and quickly returns to its original position when gently pinched. However, in dehydrated dogs, the skin may take longer to return to its normal state or remain tented when pulled. This change occurs because the body loses fluids, which impacts the skin's ability to bounce back, often becoming less pliable and more sunken.

Other signs of dehydration can include lethargy, dry gums, and an increased heart rate. Recognizing skin elasticity issues is crucial for pet owners and groomers, as it allows for timely intervention to address dehydration, which can lead to serious health problems if not corrected.