This show is GREAT! I watched this show when it aired on nickolodeon in the UK, probably about 15/16years ago when I was 7yrs old or so and i loved it. It's about a little gang of babies, and also to an extent about there parents too. It shows the world through a babies eyes, and it shows the simple things which can become scary and terrifying when a little imagination is thrown into the equation. It also plays on the things the parents say, and how the kids interpret it into these blown up exhagerated situations. One example is when Chuckie (a cute little ginger character who is very nervous of everything) swallows a water melon seed, and Angelica (and older kid, very much a princess, daddy's girl type) tells him that now a WHOLE water melon is going to grow inside him. Well of-course than means the babies have to shrink themselves and go take that water-melon pip out of there! It then shows there journey inside the human body, from the sticky gooey inside of chuckie's nose, to the turbid treachourous stomach....and around his blood stream where they surf along red blood cells as make-shift dingys. It's a great way to show kids what the inside of the body looks like, it is very accurate (as much as a cartoon can be), it's just great.
Some of the episodes can be quite scary, but always with the show the kids are shown how these things aren't scary and there's nothing to worry about.
I think i watched this show until i was about 11years old, probably it is best aimed at under 8s.
It's a great show, definitely recommend it to parents looking for a kind hearted show for kids, which confronts all those things that children are scared of, and resolves them in a friendly way :)