Anti-colic bottle comprising: a bottle body (16) comprising a bottle neck (18)； a cover (14) removably attached to the bottleneck (18)； and an elastic nipple (12) comprising a teat portion (24) comprising a through hole for dispensing fluid (26) and an annular base (28), an annular flange (30) extending radially outwardly from the annular base (28), a plurality of openings (32) formed 360 ° around the annular flange (30), and an annular skirt (40) that depends on the annular base (28)； wherein the annular flange (30) is held between an upper annular wall (20) of the cap and an edge of the bottle neck (18), and the annular skirt (40) is radially separated into an inner surface ( 42) of the bottleneck (18) to define an annular passage (44) comprising an outer end (46) in air communication with the openings (32) and an inner end (48) that is normally closed by the force of deflection of a free end (50) of the annular skirt (40) that presses against the inner surface (42) of the bottleneck (18)； characterized in that the teat portion (24) comprises an annular projection (70) above the openings (32) of the annular flange which together with the upper annular wall (20) of the cover (14) defines an annular air inlet (72) in air communication with the openings (32).Biberón anticólicos que comprende: un cuerpo de biberón (16) que comprende un cuello de biberón (18)； una tapa (14) fijada de forma amovible al cuello de biberón (18)； y una tetina elástica (12) que comprende una parte de tetilla (24) que comprende un orificio pasante de dispensación de fluido (26) y una base anular (28), un reborde anular (30) que se extiende radialmente hacia fuera desde la base anular (28), una pluralidad de aberturas (32) formadas 360º alrededor del reborde anular (30), y un faldón anular (40) que depende de la base anular (28)； en el que el reborde anular (30) se sujeta entre una pared anular superior (20) de la tapa y un borde del cuello de biberón (18), y el faldón anular (40) está separad
