Coelenterata

(Yomiuri Shimbun/AFP/Getty Images) First, brain sucking amobae. Now, humongous jellyfish: http://www.npr.org/templates/story/story.php?storyId=14912443 Giant jellyfish are flooding into the Sea of Japan. The translucent creatures can grow as large as 6 feet in diameter and weigh 450 lbs. Over the last 5 years, millions have migrated from the coast of China into Japanese waters. Scientists believe they're floating in on ocean currents warmed by global climate change. The jellyfish are so heavy they rip the nets of Japanese fishermen and their venom poisons the rest of the catch. The country's…