Why do we need to see Captain America, Batman, or the Green Lantern in manatee form? I'm not sure, but Joel Micah Harris fills that need with adorably pudgy illustrations of spandex-clad, superpowered undersea creatures.
Head over to Harris' deviantART gallery to see more of his manatee mashups, including Supermanatee, Spider-Manatee, and Martian Manatee Hunter. But really, what's so special about Aquamanatee? Wouldn't Landmanatee be more impressive?