Why do dogs have cold noses? – Live Science

After an especially good belly rub, a dog might bump its nose
into its human as a way of saying thanks. Often, this snoot boop feels cold and wet. The owner might wonder: Is it normal for a dog’s nose to feel like this? 
The answer is yes, it’s normal. But so is a warm nose, especially after snoozing, said Anna Bálint, a researcher who studies animal behavior at Eötvös Loránd University in Budapest, Hungary. “When a dog is asleep, their nose usually warms up, and it also dries,” she told Live…

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