They have found a couple of specie to actually be "poisonous"
The genus Rhabdophis is found to use the toxins from the frogs/toads it eats to ward off predators. And some garter specie have some toxins on them as well.
However calling venomous snakes poisonous snakes is a big thing with me as well......my 10 year old son corrects people....rofl and he can explain the difference to them to prove his case!....![]()