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My only other snake that is noticeably different recently is one of my corns. This guy is typically shy and was a somewhat finicky eater when he was younger. Last week a few days after feeding I was spot cleaning his tank and changing water. He shot out from under his hide across the tank, got my hand and started to coil. I just left him there and went on with cleaning his tank till he realized I wasn't food.
A lot of my hobbies deal with animals and their behavior. I would say weather has a big impact on animals. Anything from temperature, barometric pressure, to wind speed and direction. Moon phases also play major a part in animals activity, which we just had a full moon last week.
About your corn snake:
And I hadn't considered the moon phases either. Moon phases affect humans too, for that matter.
Rudeness is the weak man's imitation of strength. Eric Hoffer(1902 - 1983)
“The greatness of a nation and its moral progress can be judged by the way its animals are treated.” ~ Gandhi