The scientific definition of “fruit” is the ripened ovary of a flowering plant. This differs from the normal usage so some things not commonly considered fruit, such as tomatoes and the pods of soybeans, are fruits by this definition. Flowering plants (not all plants have flowers) have male and female anatomical structures. Many species have both structures in one flower. Some species have flowers that contains either male or female structures. These flowers can either be on the same plant (monoecious), like watermelon and corn, or on different plants (diecious), like papaya. The ovary, what will become the fruit, is a female anatomical structure, and it makes no sense to talk about a male fruit for any type of flower. Male flowers produce pollen, which fertilizes the embryo in an ovary, but male flowers themselves don’t produce fruit.