Moms: Could you always tell from your baby's cry when he or she was hungry from all of the other variations of crying?

What is different about it from, say, I am not happy because I am wet or because I heard a loud noise or any other? What were the subtleties that gave it away or did you just recognize it had been long enough that they were probably hungry?

Could you recognize the same cry in other babies? Did they make a similar cry to your child?

Those with grown children, do you still recognize a hunger cry?

Those who have not had children, can you differentiate a hunger cry from all others?

(Guys, feel free to weigh in on your abilities in this arena)