Predators using engineering to turn prey into technology is fascinating. They could turn a flying animal they hunted into a vehicle.
I read an interesting theory on the AVPGalaxy front page about a hypothetical origin of the Lost Tribe Predator spaceship, which tackles the idea of enginering a pray into that particular vehicle.
I like it, and fit with the otherworldy vibe of the vessel. Even the ilumination seems like a product of bioluminisesce.