When you walk through the sea and a fish hits your knee, that's a moray.
http://www.nintendoworldreport.com/news/40723/new-splatoon-stage-coming-tomorrow-night
Squid Research never sleeps, as a new map was announced for the rotation beginning at 10 Eastern time / 7 Pacific time tomorrow night.
The Moray Tower is a test of verticality, as the two bases are at the top of huge slopes. It's possible to jump all the way to the bottom of the area from the home base to get right on the front lines, but further testing will be required to see how effective that strategy is.