Cycad seed tissue loaded with carbohydrates

Learning how to make a seed was one of the crucial transitions for the world's plants. The competitive advantages that seed-producing plants possess has led to their dominance in most contemporary natural habitats. Additionally, the crops that comprise the bulk of today's human diet are all seed-producing plants. The original plants that learned to make a seed did so without a flower and fruit to aid in the process. Some of these original plants have persisted throughout the eons, and studying these plants offers scientists an opportunity to uncover some of the traits that have enabled their persistence.

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