Natalie's hair is shorter on top because all of that fell out after she was born. It looks ridiculous that it's so long in the back and so short on top. She also has a tiny bald patch right on the back of her head from sleeping on her back. Now she rolls to her tummy and sleeps that way, so hopefully it will grow in soon.
Re: And I thought I had bad hair days...
O's got long hair on the top, and nothing on the back or sides... so he's rockin' a mohawk, and it's hilarious some days!!
H's hair is curly as all hell, so somedays I can't get over how much he looks like Doc Brown from Back to the Future.
Ian has a patch of skin on top of his head that will always grow hair faster than the rest of his head. It's like a sumo wrestler poof.