I've had my pacman since February and is a pretty decent size now but I'm concerned about his back legs. When he is sitting there its seems as if his legs look broken. He hasn't fallen or been dropped. His legs are almost straight back. His legs are still mobile and has control over them but doesn't seem to want to rest them under his stomach like other frogs. What could cause this? He eats fine and everything else is good. It doesn't seem to bother him but I'm just concerned as to why his legs are like this. He isn't as active as when I first got him and his legs weren't always straight back like this.