When I was younger I caught a couple garter snakes and put them in a glass aquarium on pine shavings.
The next day they were twitching uncontrollably and I was so horrified I released them back into the field where I found them.
I have no idea what may have caused this. The only thing I can think of was there was something toxic in their enclosure. Was it the pine? That's all that was in there besides a water bowl.
