I'm at the age that by time my 5 YO yellow lab passes on, the next dog may very well be my last. Two yellow labs, three black labs and a couple other good dogs have blessed my life so far. The two yellow labs have been the best. One more yellow lab, a smallish lab will be the last. My first yellow lab girl weighed 60 pounds even in her prime while the current one is taller and runs right at 65 pounds of lean craziness. I visited a breeder years ago that had a line of labs that ran a bit under 50 pounds for females which seems about right these days.