The two primary points in describing the south pole are based on geographic and magnetic locations. The geographic pole is a fixed position based on the axis of the earth’s rotation. The magnetic pole is a shifting position defined by the earth’s magnetic field. The Antarctic Treaty of 1962 defined Antarctica as a scientific reserve.
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Euphausia superba - The Antarctic krill is the most abundant multicellular animal on earth. They inhabit the waters surrounding Antarctica and serve as a direct and indirect source of food for the larger animals feeding in the Southern Ocean. Adult krill are about 6 centimeters in length and can weigh up to two grams. They have transparent bodies coated with small red pigments spots. The large black eyes are a prominent feature. Krill feed on phytoplankton, plant material, and to a lessor degree on zooplankton, animal material.
