they use them as bait man, you can get a bunch for cheap. They do make decent pets, kind of like goldfish, low maint. don't usually live too long. Smell like shit though.
Manny never saw a newt (which is what I think it is) up here.
I'm guessing it was someone's and they let it go or it got away
You can bring it to a pet store if you don't want it.