Cover: Antarctic minke whale (Balaenopterabonaerensis) foraging in the ice-covered waters of Wilhelmina Bay, Western Antarctic Peninsula. The whale is outfitted with a multi-sensor recording tag to measure underwater movement and behavior. Friedlaender et al. (pp. 2851-2854) find that these whales perform unique feeding dives under sea ice and forage at extraordinarily high rates, greater than any other baleen whale. The minke whale’s unique combination of body size, feeding mechanism and habitat define a previously undocumented ecological niche unique among diving vertebrates. Photo credit: A. Friedlaender, taken under permits NMFS 14097 and ACA 2009-013.