Overpopulation is the condition where there are too many of one organism in an environment. In terms of humanity, Bombay and Bangladesh are two examples where there are more humans than can be sustained by their environment. Food shipments from outside the country and mass starvation are commonplace. Attempts at controlling overpopulation in humans tends to fail, either on religious or biological terms. When China imposed population restrictions, most families wanted a male heir. Many female children were abandoned in orphanages.