In some places, iceberg lilies are the mainstay of grizzly bears' summer diets  The bears forage meadows for the lilies, uprooting them and eating their bulbs
Although the bears annually destroy a large percentage of the lilies, scientists have determined that the bears' feeding habits actually promote the survival of iceberg lilies
Iceberg lilies produce so many offspring that, when undisturbed, they quickly deplete the resources necessary for their own survival.