You asked

What should my toddler be capable of at the age of 13 to 18 months?

There are a number of things that toddlers are capable of from the age of 13 months. For instance, they are able to say two words; they can bend over and pick up objects, and just love looking at their own reflection in a mirror.

At 14 months, they are able to eat with their fingers; they imitate others very well, and can also match lids with the correct containers.

At 15 months they are able to walk backwards, play with a ball, say three words, and enjoy scribbling with crayons.

At 16 months, they usually switch from taking two naps per day to only taking one, love climbing, and will throw temper tantrums when they become frustrated.

At the age of 17 months, you will find that your toddler is able to use about six words, enjoys pretend games, and loves to dance to music.

Your toddler will show a readiness to learn how to use the toilet at the age of 18 months, will brush his teeth with help, and will start to “read” books on his own.

More questions

There is no right or wrong age to get a family dog; however, you should be mindful of your situation before you rush into things. 
Serious risks and medical conditions associated with regression of a child’s motor skills
Drooling and difficulty eating can be associated with normal toddler behaviour, illness or sensory processes.
Up to the age of three, your toddler will be over separation anxiety. However, as there are so many separations in the years of growing up – pre-school, a few days away at camp, and even your child’s first year at college, bouts of separation anxiety could very well occur from time to time all through your child’s life.
As long as your toddler has plenty of space and time to play, and practice all their new physical skills, they’re probably doing just fine with her development!
Toddlers are naturally curious about everything. Instead of stifling that curiosity, you should be making every effort to promote it!
Your child’s imagination is not only a source of fun – it’s one of his or her most important early learning tools.
Young children are emotional beings. The worst thing you can do is make them stifle those emotions. Teach them how to cope with them instead, and you’ll raise a well-adjusted child.
If you want your child to grow up with a strong spiritual foundation, it’s never too young to start teaching, but remember to teach by example.
For toddlers, as with older children and adults, happiness comes from inside, not from outside.