Small creatures of the Sonic Adventure games. Theres pictures of them in his sig & avatar. Oh and Lucky Chao, I suggest adding a bit more to your first post, it needs to be longer and more descriptive for the first post of a new thread. And I suggest also looking at the Newbies guide to the Universe, theres a link to it in my sig.
my fave chao is definitely the neutral swim chao and the neutral chaos chao, they look osm. The neutral swim looks so cool, and then there's the neutral chaos, which looks enigmatic and blank-eyed. My best and favorite chao is Elune, a chao with 99 of all but stamina, and she's a chaos hero >.<