Browsing through some cookbooks … and noticed that back when most of them were written (ranging five to twenty years ago), recipes that called for chicken breasts typically specified as such:
1 pound chicken breasts (about three breasts)
I’m looking in the meat department right now … and there are mostly three breast packages … and every one of them is two pounds plus.
I’m sure it’s nothing to worry about …
highplainsdrifters 
I’m more worried about growing 3 breasted chickens!
Frightening… There’s only one way those chicken breasts got bigger and it isn’t the gym