The average dog sleeps for about 12 to 14 hours per 24-hour cycle. Thatâs just the beginning, though. Puppies, who expend a lot of energy exploring and learning may need as much as 18 to 20 hours.
Although individual differences exist, the list below can provide some common hunger symptoms: 1  Feeling of emptiness in stomach. 2  Gurgling, rumbling or growling in stomach. 3  Dizziness, faintness or light-headedness. 4  Headache. Irritability, easily agitated.  Lack of 1  concentration. Nausea.
Signs that babies are hungry include: 1  moving their heads from side to side. 2  opening their mouths. 3  sticking out their tongues. 4  placing their hands and fists to their mouths. 5  puckering their lips as if to suck. 6  nuzzling again their mothers' breasts.