Snake Eats Iguana

It has recently been suggested that all snakes may be venomous to a certain degree, with harmless snakes having weak venom and no fangs. Most snakes currently labelled “nonvenomous” would still be considered harmless according to this theory, as these snakes either lack a delivery method for the venom or are simply incapable of delivering enough to endanger a human. This theory postulates snakes may have evolved from a common lizard ancestor that was venomous, from which venomous lizards like the gila monster and beaded lizard may also have derived, as well as the monitor lizards and now extinct mosasaurs. They share this venom clade with various other saurian species.
Venomous snakes are classified in two taxonomic families:
• Elapids – cobras including king cobras, kraits, mambas, Australian copperheads, sea snakes, and coral snakes.