Found tortoise pair

I’ve emailed a rescue group, they had no number to call. They haven’t got back to me yet and I really need to know if these guys are gonna die or if they’re native.

Their shells look different from each other and the one hiding isn’t as vibrant or red at all compared to the one behind it. Thought maybe I interrupted some sexy time but I’m not so sure they aren’t abandoned pets.

Any tortoise experts out there?