Is my niece behind?

how sad :( I don't remember what all my son was doing at 2. you could google the milestones.

it is!! i didn't think of that. lol. but I'm gonna check that out.

Does she speak well? At 2, my daughter spoke very well and strangers commented about that.

If she is used to being dropped off at daycare then that is probably why she didn't cry when they left her with you. My kids were in daycare up until hubby got injured in the army and is now home due to disability. Just cuz kids are in daycare doesn't mean that the parents don't care or don't do anything with them.

As for anything else I would google it.

it could be that she is secure enough either with you or with the idea that "mommy will always come back to get me". is she using words to express herself? like if she wants a drink can she say "juice" or "water" or "cup"? at 2 she should be using short 2-3 word sentences like "more milk", "bye, bye momma". "mine" is a big word at that age. does she use some sign language? does she make eye contact? when you say "no emotion" do you mean that she wasn't sad when mommy left? or does she not smile/laugh at anything? some kids are just more reserved. but, if no emotion it could be a concern. what about potty training? (depends on if she's a young 2 or an older 2) 2's (especailly young 2's) tend to still use parallel play instead of actually playing together. meaning that they will play with things near one another but not really interact. they like to build towers with blocks or other stacking items and knock them down, usually things with wheels will interest them, baby dolls (carry around, pretend to feed, put to sleep, maybe pretend to change diaper), imtitate adults by playing phone calls, kitchen. she could also be able to imitate simple hand songs like the ittsy bittsy spider, etc. many times kids that are in daycare all day tend to be further ahead because they are exposed to many children and care givers. good luck! i worked with 2's for about 2 1/2 years in a daycare also older kids, nannied for several families, 3's for about 1 year, then babies and tod's for 4 years, plus my own 2 kids 7 yrs and 18 months. so these are my experiences....

My son is 2 1/2 and can say his ABC's, count to 13, identify all letters of the alphabet, spell his name, knows all his shapes and colors. He also has been talking non stop since about 16 months. The doctor said he's ahead of most his age.

My daughters 26 months- 27 months on the 17th.

She walks, runs and just started jumping in january.

She still babbles a lot but can say a lot of words and some sentences.

Like 'are you alright?', 'where is mama?', 'gramma where are you?'

She understands things like- get your shoes, pick up your toy, get your cup... ect.

She understands questions like - wheres elmo? - she goes to find him.
Wheres your blanket, she goes and gets it.

Shes been trying to dress herself to.

She gives hugs and kisses randomly or if you ask for one. She can point to her nose, head, tummy, and toes if you ask.

She has a name for each of her shows. Like toopy and bino (spelling) she calls tutu. And barney buba. And thomas the train chewchew.

She knows how to work her portable dvd player (play button, fast forward, and putting the disk in).

She just started getting her boots on the right feet.

As for emotion wise when i leave- she is fine if i leave her with my mom but i dont leave her with anyone else..

At home i cant shower or go to the bathroom alone. She only falls asleep if i lay beside her.

She doesnt know how to say colors yet, just purple.

She does use her words, but doesn't want to be touched that much. I've seen her cry over little stuff, but it's more of a fake cry ya know? but not over her mom leaving or her dad not being here. i have yet to see her smile. so i guess there's some emotion but not much. not potty trained but she turned 2 in november. Is she supposed to recognize numbers or letters? 

My kids are 2 and 3. They never cry when we leave them with a sitter. I'm a sahm so its not like they get left very often. Just because she doesn't cry when mom leaves doesnrt mean she is neglected. All kids are different.

Just because a child does not cry when they get dropped off does not mean they lack emotion. 

At age 2 it varies. All 3 of my kids are different. Honestly you seem to be jumping the gun. If something were truly wrong the daycare owuld have noticed and let the parents know.