Houses made by protists Mike Hansell  Current Biology  Volume 21, Issue 13, Pages R485-R487 (July 2011) DOI: 10.1016/j.cub.2011.05.050 Copyright © 2011 Elsevier Ltd Terms and Conditions

Figure 1 Difflugia corona case of quartz grains (reproduced with permission from the Natural History Museum Picture Library). Current Biology 2011 21, R485-R487DOI: (10.1016/j.cub.2011.05.050) Copyright © 2011 Elsevier Ltd Terms and Conditions

Figure 2 Case of a trochamminid foraminiferan constructed from algal coccoliths (reproduced with permission of Erik Thomsen). Current Biology 2011 21, R485-R487DOI: (10.1016/j.cub.2011.05.050) Copyright © 2011 Elsevier Ltd Terms and Conditions