Marvel: Crisis Protocol Lizard & KravenDescriptionSpecificationsShipping Doctor Curtis Connors was once a genetic biologist and mentor to Peter Parker. He sought a way to use reptile DNA to regrow lost limbs, like his own missing arm. After testing his experimental serum on himself, Connors transformed into the inhuman reptilian creature, Lizard. Sergei Kravinoff is Kraven the Hunter, a fanatical big game hunter who seeks to claim Spider Man as a prize to demonstrate he is the foremost