Sophie's babies are 3 weeks old today. According to this website http://cats.about.com/od/kittencare/ss/track6weeks.htm. They are progressing development wise extreme fast. They opened there eyes 4 days earlier then this site said they would. They are already walking GREAT, exploring outside there nest, playing with each other, chewing on my toes. etc. etc. According to that website they shouldn't be that active yet. They are 3 weeks old but they are acting 4 or 5 weeks old. So I was wondering is this website wrong or do I have some Amazing Babies on my hands??