to act out their primal urges, by suppressing emotional control in their amygdala (the "lizard brain"). Based on various physiological and environmental factors, the Lizard's intelligence can range from bestial and animalistic to normal human intelligence. The Lizard personality has most often manifested with human intelligence, capable of speech and higher reasoning, although some versions have been more feral than others. During the "Secret Wars" in particular, he appeared less ruthless than his normal portrayal, showing concern for Volcana and the Wasp after they showed him kindness despite his usual disdain for humans. However, even when operating at the level of a human, the Lizard is rarely as intelligent as Dr. Connors, showing on many occasions an inability to understand his human self's work and use it to further his own ends despite his best efforts. The Lizard has apparently "destroyed" the Curt Connors persona, but has subsequently begun to display some of Connors's human emotions. In contrast to his previously feral nature, he has also shown sufficient intellectual capabilities to replicate Connors' work for himself, although he is still hampered by his inability to fully comprehend human emotions. Continuity In a 2004 story arc entitled Lizard's Tale, written by Paul Jenkins in the Spectacular Spider-Man comic book, it was revealed that the Lizard persona was not a separate personality from Dr. Connors after all — Curt had been consciously controlling his reptilian alter ego all along. Furthermore, Connors was shown to know that Peter Parker was Spider-Man, despite the discovery of the secret identity never being explained or depicted. The story ended with Dr. Connors deliberately getting himself sent to prison and hoping the Lizard would not be unleashed again. The Lizard's next appearance after this was as a member of the Sinister Twelve, where he showed no indication of being controlled by the mind of Dr. Connors. Although the idea of Connors controlling the Lizard was subsequently ignored, when the Lizard's mind was briefly trapped in Connors' human form, he attempted to mutate the staff of Horizon Labs into lizard people like himself, with none of the other lizards demonstrating the same hostility to humans as the Lizard, prompting Spider-Man to speculate that the Lizard's anti-human traits came from Connors' anger at the world for his lost arm and family rather than the Lizard being completely separate from Connors. Another continuity-related issue involves Connors' son Billy. Unlike many