Dogs are afraid of heat or cold

Dogs are afraid of heat, but for the cold climate tolerance is higher, because the dog’s skin does not have sweat glands, heat dissipation mainly by the tongue and foot pads, so in the hot summer is prone to heatstroke. But for the winter there is hair to keep warm, so it is not easy to cold. As long as the dog feels a little hot, it will open its mouth and stick out its tongue, panting heavily, so it can secrete a lot of saliva instead of sweat. Dogs lower their body temperature by making the saliva evaporate to give off heat. They salivate a lot and lower their body temperature by absorbing heat through saliva evaporation. When the weather is hot, this method alone will not be able to cool down successfully.