Sinister Sharks versus Amazing Amazons

The Shark was a perpetual predator who not only plagued the Green Lantern of Earth-One, Hal Jordan, but also sought other powerhouse prey. After three clashes with the Emerald Crusader, the Shark diverted his attention to the Lantern's Justice League comrades Aquaman, Superman and finally Wonder Woman. Each time he faced these Leaguers, his mutated humanoid form was reverted back to his natural state as a tiger shark. However, the atomic radiation he was initially exposed to and which caused his mutation forever affected his genetic structure, and it was only a matter of time before he regained his former stature.

In his various altered forms, the Shark possessed not only superhuman strength and the power of flight, but also vast mental powers which included the ability to induce fear in his victims. His doppelgänger on Earth-Two was born a human who gained unspecified powers after his imprisonment, although this individual known as King Shark ended up allied with his world's Green Lantern, Alan Scott. Once his girlfriend's life was saved, he disappeared never to reappear, although another man named Shark Wilson seemed to fully mutate into a shark during a clash with his reality's Aquaman. Wilson's counterpart Shark Norton was a mere criminal and foe of the Justice Leaguers Aquaman and Green Arrow.

Interestingly, additional shark-human hybrids appeared on Earth-Two, spawned by the young scientist on Paradise Island named Gerta Von Gunther. These creatures were transformed into flying mermaids, led by the sinister Sharkette, whose Earth-One cosmic twin was the Global Guardian heroine named Little Mermaid. 

Just as the Earth-One Wonder Woman initially encountered the Shark and later battled him on Paradise Island, so too had the Earth-Two Wonder Woman first met Sharkette and her blonde haired "mermaid-sharks" whom she battled on Paradise Island. The mindless mermaid minions filled in for King Shark, who never interacted with Wonder Woman, and three of these ladies found corresponding creatures in the Shark's "Princes of the Prey, whom the Shark unleashed upon Wonder Woman and her Justice League allies on a later occasion. 

Whether the chemical concoction created by Gerta for Sharketta was the catalyst for Shark Wilson’s temporary transformation into a shark is unknown thought quite possible. The Shark’s initial mutations were caused by the radiation while subsequent transformations were the trials of genetic engineering such as that performed at S.T.A.R. Labs Florida. 

Unlike the Shark and his Prey Princes, who were irredeemably evil and transformed back to their natural states, Sharketta and her mermaidens were made docile and integrated into Amazonian society. While Sharkeeta remained the self-appointed “Queen” to her fellow mer-sharks, Shark only had a brief stint as self-proclaimed royalty when he attempted to usurp kingship of Atlantis from Aquaman under the human alter ego of Kershon.