早在18世纪,探险家就发现南极海面生活着一种小虾,数量多时能把海水染红。经生物学家鉴定,它们与太平洋磷虾同宗,是磷虾科的节肢动物,定名为南极磷虾。南极磷虾体长约5厘米,透明的躯体夹着红褐的斑点,眼部、胸部和腹部都有发光器,在夜色中会发出点 As early as the 18th century, explorers discovered that there was a kind of shrimp in the Antarctic sea, which for a long time was able to stain the sea. The biologists identified them as the same species as Pacific krill. They are arthropods in the Krill family and are designated Antarctic krill. The Antarctic krill is about 5 cm long. The transparent body has red and brown spots. There are light emitters on the eyes, chest and abdomen, and they emit dots in the night.