In Yosemite, park rangers will happily show you many pictures of cars that were torn open by bears searching for food: door frames pried out and bent in half, s

In Yosemite, park rangers will happily show you many pictures of cars that were torn open by bears searching for food: door frames pried out and bent in half, sheet metal gouged and dented, upholstery shredded. These are just the cute and cuddly North American black bears; the brown bears in Russia are 2-3x larger, with claws several inches longer. It does not seem likely that a crashed cosmonaut would encounter hungry bears or wolves, but I can see why they might want to take precautions.