A 1-day-old newborn only weighs a few ounces. Pups cannot see right now because the eyelids are shut tightly; this is because optical nerves are still developing and the eye itself is still forming.
Newborn puppies also cannot hear yet.
Muscles and coordination do not allow for walking; however they can wiggle and crawl to nestle close to the dam.
Up to 3 weeks old:
These first few weeks are ones of dramatic changes. By about the 2 week mark, eyes open. Also, hearing comes in. By 3 weeks, pups are trying to walk; it can take several days to a week for a young Maltese puppy to find his gait and walk steadily.
There has been continuous weight gain each day, and the pups are still dependent on the dam's milk.
4 to 7 weeks:
This is also a time of changes. Much more mobile now, Maltese young puppies are romping and playing with their littermates.
This is also the age at which weaning starts. Around the end of week 4 to the beginning of week 5, the dam will nurse less, and the pup should be weaned onto solid foods. By the 7 week mark, the pup will be fully weaned and eating solid food.
In most states, a puppy needs to be at least 8 weeks old to be sold to new home. This is also the age that milk teeth are coming in.
4 to 5 months:
. The 28 milk teeth begin falling out and will be replaced with 42 adult teeth.
4 to 9 months: Puberty begins. Females have their first heat cycle. Males have viable sperm.
Maltese are adults at the 1 year mark.
Up to 7 years: In years 1 through 7, a Maltese is in his/her prime.
A Maltese is now a senior. There is a very gradual slowing down; most Maltese do not start to show their age until the 10-year mark.