Yesterday (25/10/2009 - Sunday) I took out my female Easter Tiger snake, the big one, and I felt this vibration coming from her belly, she didn't eat anything this weekend by the way. This is not the first time I felt this but I thought I am imagining things, anyway, but yesterday I felt it very clear! and the duration went on for a quite a while, about 15sec... long enough for my girlfriend to feel it as well.
I asked a few people I know, and they said they also felt this on some of their snakes, no real explanation, and some think that it might have a ticklish reaction to human touch.
...can someone please clear this up, and tell me what this actually is.
Thanks in advance