Water lilies can also spread by pollination. When the lily flower blossoms it fills with fluid. Insects that come to the blossom in search of pollen or nectar are forced into the liquid by the special design of the petals. Any pollen that is on the insect is dissolved in the liquid and used to fertilize the plant. Once the flower is pollinated it will release its pollen and then sink down under the water. Underwater the flower will develop into a spongy berry that contains many seeds. When the fruit ripens it releases up to about 2000 seeds which float away on the current or are eaten by birds or animals. Eventually the seeds absorb enough water that they sink down into the muddy bottom where they germinate and begin a new life.