 The pygmy-right whale, caipirium marginata, a small baleen whale, inhabits temperate and sub-antarctic waters year-round rather than migrating to the southern ocean as other large baleen whales do. The whale's diet is composed primarily of krill and copepods, with some variation depending on the season. There is also a weak correlation between the whale's nitrogen-stable isotope values and see surface temperature in the eastern-grade Australian bite and bony upwelling, suggesting that seasonal changes in their diet may be linked to oceanographic changes in these areas. This article was authored by Adelaide V. Dedden, Adelaide V. Dedden, Catherine M. Kemper and others.