Predator shrapnel

The alien, racing among the trees, stopped in its tracks as the white flash from the grenade explosion short-circuited its heat-seeking vision, momentarily paralyzing it. As it froze in a crouch, a shard of shrapnel zinged through the air and managed to lodge in its thick-hided shoulder. It barely felt the merest twinge of pain, but the gash was deep enough to cause a glob of blood—a thick, translucent, amber jelly—to splash on the leaves of a kingfire bush.

   The Predator (1987 novelization), chapter 11