How can you tell how old a joey is?

Well if your joey is hairless and is all pink and it has no teeth its only a couple of days old. If your baby is this young make sure you keep it warm at least the temperature of its mums pouch which is around about 30-32 degrees Celsius. Give it FULL CREAM MILK warmed up in the microwave for at least 30secs every 4 hrs. It needs to be given to your baby in a bottle with a plastic kangaroo teat on it, NOTHING else because baby joeys mouths are very sensitive.I hope this helped.