The solar-powered Southern Ocean food chain is unique, going from some of the smallest organisms to the largest animal to ever live, in just a few short steps.
Energy from the sun is captured by microscopic marine plants that are eaten by Antarctic krill which in turn are consumed by Antarctic blue whales.
To celebrate National Science Week, Australian Antarctic Program scientists are sharing their research on whales and their prey, krill.
If you’re in Hobart tomorrow (Saturday 10 August) come and meet our scientists at the Festival of Bright Ideas.
Or follow us on social media (@AusAntarctic) as we share daily science snippets.
If you want to hear more about the work of all our researchers check out the new videos on our Meet the Scientists page.