Chaefka

The chaefka, known to ancient humans as a neldoruut, is one of several species encountered by a joint UNSC–Swords of Sanghelios task force encountered during an expedition to Installation 00 in 2555. They were similar in stature to the polar bears of Earth, but with taloned paws, tusks protruding from their faces, and toothed mouths sealed by a set of six mandibles. Chaefka were capable of producing pheromones which had a psychotropic effect on humans.

Production notes

 * The chaefka, then known as the "arctic beast", first appeared in the concept art for Halo Wars, though the animal was never implemented into the game.
 * The concept art of the chaefka, created for Halo Wars, looks vaguely similar and comparable to the Wampa from The Empire Strikes Back and the Reek in Attack of the Clones in Star Wars.

List of appearances

 * Halo: Hunters in the Dark