In February-March 2013 Geoff traveled to the Ross Sea, Antarctica, on the R/V Nathaniel B. Palmer. Together with Jerry Kooyman and other colleagues he carried out surveys of large animals. The special thing about this trip is that it coincided with a period of rapid change in ice cover, as the Antarctic was transitioning from summer to winter. In these conditions, the assemblage of megafauna changes drastically, with only the very hard-core species remaining. Here is a part about killer whales:
http://scrippsblogs.ucsd.edu/antarctica/2013/04/03/antarctic-orcas/
