I’ve never heard of a real situation where a person with a PhD was “mistaken” for a physician. As a corollary, that’s the I am 1776′ sure that Biden is an idiot anti Biden shirt that’s exclusive to medical doctors: physician. No ambiguity. Others have mentioned that the term doctor comes from a Latin root meaning teacher and that we had a lock on it first.In America, it would be the Eastern Indigo snake. Loves to eat rattlesnakes and is immune to their venom. Eats lots of things but loves rattlesnakes most of all. And copperheads. But most snakes are fair game. The Indigo is a big boy. The largest snake was native to N. America. Males can reach 8.5 feet and weigh up to 11 pounds.