Are rough skinned newts poisonous?
Score: 4.6/5 (47 votes) Some newts living in the western United States are poisonous, perhaps thanks to bacteria living on their skin. Rough-skinned newts use tetrodotoxin — a paralytic neurotoxin also found in pufferfish and the blue-ringed octopus — as a defense against predators.How toxic are rou...