(IMAGE) Spanish National Research Council (CSIC) Caption Thermogenesis is present in plants such as 'Macrozamia communis', which raise the temperature of their reproductive organs when in bloom to attract pollinating insects. Credit R. Oberprieler / Yun Hsiao Usage Restrictions Credit must be given to the creator. Only noncommercial uses of the work are permitted. No derivatives or adaptations of the work are permitted. License CC BY-NC-ND Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.