OOC:
This is a tricky one because they changed out the knowledge skills. If you were trying to perform some kind of on the spot pathology of the detritus, I'd say that might be Medicine. Survival tends to be related more to things like foraging and tracking. However, if you were trying to identify a creature, that would probably fall under Lore. I'll give a brief description of the stuff int e room and see if that helps, but if you want to roll, just let me know what you'd like to do and throw the dice.
The room is filled with bits of old cloth, carcasses of what look like dogs, rats, and a few other small animals, and a strange collection of metal junk that might not even really qualify as scrap.
OOC:
As an aside, are you moving around the room, or are you just looking through all this stuff as you enter the Ossuary?