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The sea creatures were green monsters with both reptilian and fish-like qualities. They had glowing yellow eyes and razor sharp teeth.
They behaved like typical predatory animals, but did show occasional bouts of intelligence. They were particularly aggressive, as one of them tried to drown Mystery Inc. by bashing in the windows of the mystery machine.
Powers and abilities
They were incredibly skilled swimmers and were shown to be quite strong, as one of them was able to punch straight through a glass window.
Be Cool, Scooby-Doo!
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- The sea creatures bear a striking resemblance to the Beast of Bottomless Lake, from the The Scooby-Doo Show episode, The Beast is Awake in Bottomless Lake.