Antarctic peninsula killer whales (Orcinus orca) hunt seals and a penguin on floating ice Visser, Ingrid N. ; Smith, Thomas G. ; Bullock, Ian D. ; Green, Geoffrey D. ; Carlsson, Olle G. L. ; Imberti, Santiago Abstract Publication: Marine Mammal Science Pub Date: January 2008 DOI: 10.1111/j.1748-7692.2007.00163.x Bibcode: 2008MMamS..24..225V