1. Check for breathing
The most obvious sign of life is breathing. If a dog is not breathing, it is likely dead. To check for breathing, place your hand near the dog's nose and mouth. If you feel no air movement, the dog is not breathing.
2. Check for a heartbeat
Another way to check for life is to feel for a heartbeat. Place your fingers on the dog's chest, just behind the front elbow. If you feel no heartbeat, the dog is likely dead.
3. Check the eyes
Open eyes and a protruding tongue can be a sign of death in dogs, but they are not always reliable indicators. Some dogs may have open eyes and a protruding tongue even when they are alive. If you are not sure whether a dog is dead or alive, it is best to check for breathing and a heartbeat.
4. Check for rigor mortis
Rigor mortis is the stiffening of the body that occurs after death. It usually begins a few hours after death and can last for several days. If a dog's body is stiff, it is likely dead.
5. Check for decomposition
Decomposition is the process of decay that occurs after death. It is usually accompanied by a foul odor and the appearance of maggots or other insects. If a dog's body is decomposing, it is likely dead.
If you are unsure whether a dog is alive or dead, it is best to err on the side of caution and take the dog to a veterinarian.