Blue whales were hunted hard to fats and oils, especially in the first years of the century 70 20 are expected to 500 rail, transit of Venus000 was killed. Whale population around the island, South Georgia in the South Atlantic was killed a genocide. Including those who were living outside the coast of Japan. Blue whale populations, some groups decrease of 93.Until the middle decades 1950 had conservation up seriously.The decade.About a year 1940-1950.About a year 1940-1950.
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