FIG. 1 is a front elevational view of a baby bottle, showing my new design, the rear elevational view being identical thereto, with the three circular elements omitted therefrom;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view; and

FIG. 5 is a bottom plan view thereof.

The broken line showing of the nipple and cap in FIG. 1 is for illustrative purposes only and forms no part of the claimed design.