A baby bottle comprising an asymmetrically divided lower portion continuous with a common upper portion that is attachable to a nipple assembly. The upper portion and lower portion together define a single, continuous fluid chamber. The upper portion includes an open top providing access to the fluid chamber. The lower portion comprises first and second side-by side tubular sections together defining a central opening between them and through the bottle. The central opening is sized to receive the hand of a nursing child so that each of the first and second tubular sections is alternately grippable by the child nursing from the bottle. The diameter of the first tubular section is greater than the diameter of the second tubular section so that the bottle is grippable by different sized hands, that is, by infants and toddlers of different ages and sizes.