**Author details**

Eva Garcia-Lopez, Ana Maria Moreno and Cristina Cid\* Microbial Evolution Laboratory, Center for Astrobiology (CSIC-INTA), Madrid, Spain

\*Address all correspondence to: cidsc@inta.es

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

*Microbial Community Structure and Metabolic Networks in Polar Glaciers DOI: http://dx.doi.org/10.5772/intechopen.84945*
