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Fun Snake Fact: There is a snake that’s actually poisonous. That’s right, poisonous, not venomous.

In the Pacific Northwest, there’s a small, harmless snake (the garter snake) with a wide-ranging diet. One particular population preys mostly upon newts containing tetrodotoxin (apparently acquired from bacteria; the same chemical is the toxin in pufferfish). As a result of their prey’s super-potent nerve toxin, the snakes have evolutionarily modified the sodium channels in their nerves to be less responsive to that toxin.

However, tetrodotoxin takes a while to break down. The tetrodotoxin disappears fairly fast from most of the snake’s tissues, except for their livers, which it accumulates in large quantities for long periods of time. This has the potential effect of making these snakes toxic to many of their native predators, especially birds, making this type of snake technically a poisonous snake.

so like. snakes don't actually have long tails- their tails are infact pretty short- and basically all of their length comes from just having a very long torso.

so as far as "accurate" anthro snakes go.