We have a red sided garter snake that we think is male but is there a way to tell for definite? its just he's getting a bit thicker, slight loss of appetite and seems more and more less social. Normally he's out a lot and doesn't tend to hide when i go near him but recently he's been becoming more of a recluse. And i cant help thinking back to the guy we brought him from, one of the first things he told us was that garters are live bearers. just want to know for sure.