Stroller with retaining mechanism

A transportation system comprising:

• a stroller including:
• a frame;
• a set of wheels coupled to said frame;
• a handlebar shaped and located to be gripped by an operator such that said operator can roll said stroller in the desired direction;
• and
• a retaining mechanism;
• and
• an infant carrier shaped to receive an infant therein, said infant carrier being shaped to be selectively mounted to said frame, said retaining mechanism being repositionable responsive to movement of said infant carrier between a retaining position and a loading position such that upward movement of said infant carrier is operative to engage said retaining mechanism and mount said infant carrier to said frame;
• wherein said retaining mechanism is biased into said retaining position;
• wherein said retaining mechanism is configured such that locating said infant carrier on said frame causes said retaining mechanism to move from said retaining position to said loading position as said infant carrier is located on said frame;
• wherein said retaining mechanism returns to said retaining position after said infant carrier is located on said frame;
• and
• wherein said infant carrier can be lifted off of said frame while said retaining mechanism is located in said retaining position without moving said retaining mechanism from said retaining position to said loading position.