At Levi & Sonora's latest doctor appointments we found out that Sonora weighs 20 lbs, 8 oz. and Levi weighs 11 lbs, 8 1/2 oz. It's clear to say that Levi will outweigh Sonora in about 4 months! Levi is a big boy (for us) and is at the 50th percentile; it's quite different than Sonora holding steady at the 5th percentile. We hope this means no buying expensive formula and Pedisure!