Yes, infants need a passport to travel to Canada.
Yes, infants need a passport to travel to Mexico.
Yes, infants need a passport to travel internationally, regardless of their age.
No, infants need a passport to travel internationally.
No, infants traveling to Mexico are required to have a valid passport.
Even Infants can enter the US with their US passport. So there is really no age limit to one who wants to enter as long as they have appropriate documents.
No, infants do not need a passport to travel domestically within the United States.
Not all. As long as the passport photo is within the rules and regulations for a valid passport photo then it is good.
No, you cannot take your baby to Mexico without a passport. All travelers, including infants, need a valid passport to enter Mexico.
Usually infants can already have passports especially if they are to be brought with the family during travel internationally.
Yes. Even infants need it in order to travel especially international travel.
According to the State Department website and the airlines (USAirways) your passport just needs to be valid for your travel dates. As long as you are back before your passport expires, you are OK.