関連ワード:  are sperm whales the biggest whales    are sperm whales the second biggest whale    are sperm whales the largest toothed whale    are sperm whales the third largest whale    is sperm whale the biggest whale in the world    are sperm whales bigger than orcas    do sperm whales eat other whales    are whale sharks bigger than sperm whales  
結果 : are sperm whales the biggest whales