Acacia Ants (IMAGE) Cell Press Caption This photograph shows acacia ants on their host tree (Crematogaster mimosae, Acacia zanzibarica). Credit Felix A. Hager and Kathrin Krausa Usage Restrictions Credit Required License Licensed content 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.