Cataclysm screenshot from Blizzard is shown above, featuring a look at ... some fish, I guess. They're far more detailed than the schools of fish we see in-game today, which should make underwater adventures much more enjoyable visually. Also, I can't remember the name for those gross critters that look like rolled up tongues shoved into elongated ice cream cones. It's driving me insane. Ghostcrawler, Mr. Marine Biologist, help a guy out here!
If you've missed any of the previous Cataclysm screenshots of the day, check them out in the gallery below. There also may or may not be a preview of the screenshots of the day for this upcoming weekend.