As I said in my above post, yes they can be grey. Appaloosa's can carry the gray gene. But that horse in question you were describing didn't have it, if he was brown when shedded out.
We weren't calling you stupid, we were merely trying to educate you. It's only been recently that equine genetics have really become understood, and most people still know very little about it. Even my trainer tried to tell me Arabians can be buckskin, when in fact they cannot because PB arabs don't carry the cream gene, and she's been around horses for 30+ years. A little knowledge never hurt anyone. :P
It wouldn't really be that hard for a cremello foal to be born. That foals dam looks smoky brown to me. Definitely not regular bay or brown, and definitely not dun either. All it would take is for the foal's sire to carry the cream gene as well, and viola cremello. It's fairly basic genetics really, not some weird anomaly.
Last edited by Haley; 09-24-2009 at 11:38 AM.