Talk:War on the Gods/@comment-26307684-20150413050704/@comment-28032069-20160322133629

Well, there's many reasons and this likely may not have been thought of as a possible issue, but it may have been because they were based on shallow ocean floors and were not actually capable of swimming, or it may have been that they were so deep in water that they were ill-equipped to handle the pressure change moving upwards for the inverse of the reason we are incapable of moving downwards, and that this somehow hindered their swimming.