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But how will marine organisms like the krill react to environmental changes at the poles, such as receding sea ice and ocean warming, given that their vital processes, such as reproduction cycles and seasonable food availability, have been synchronized with the environment over millions of years? To answer this question, researchers in the virtual Helmholtz Institute PolarTime are taking a very close look at Antarctic krill, which serves as a model organism for a polar plankton species that has adapted to the extreme conditions. The Helmholtz institute is part of the Alfred Wegener Institute for Polar and Marine Research.