Self-pollinating plants carry several advantages over those plants that are non-self-pollinating. For one, self-pollinating plants still produce the same number of seeds during drought conditions, when the number of insects – which aid in the spread of seeds of non-self-pollinating plants – is low. Self-pollinating plants are also able to thrive in a greater variety of climates. Nonetheless, the number of self-pollinating plants in the world is much lower than that of non-self-pollinating plants.