The Oxus cobra contains what kind of ions for their venom to be active?
Caspian cobra The Caspian cobra ("Naja oxiana"), also called the Central Asian cobra, Oxus cobra or Russian cobra, a member of the family Elapidae found in Central Asia.
Cobatoxin Cobatoxin is a toxin present in the venom of the scorpion "Centruroides noxius". It blocks two potassium channel subtypes; voltage-gated and calcium-activated channels.