More impacts of climate change are being displayed at the poles, this time in Antarctic fur seals. Krill are a vital food source for many species including penguins and seals and crashes in their populations therefore have massive knock on effects.
Three decades of data show the females of this species are being born smaller, and those that do survive to motherhood are breeding later in life. Subtle changes in their genetics are also being recorded. Researchers tell the journal Nature that a shift in a dominant climate pattern has affected the supply of the seals' primary food source - krill.