Ah. I don't really like the first two because there's a possibility that no one would even have a chance to pick up the pet within three/six months. There are lots and lots of pets out there, and not all of them are quickly found. I think I'd be rather sad if there was a glitch-named pet out there and lost its name before anyone was able to pick it up. Or a retired pet that got deleted, for that matter.
I think it works better with the way it was in v1. That way you pretty well know it's a pet the average person may not want, and it doesn't end up being deleted without a chance to be found first.
A water-dwelling camel just seems a little.. strange to me. xD It is a pretty interesting idea though, to take the ability to store water and change it to oxygen.