Helioskrill

Helioskrills are predatory creatures that live in high, mountainous regions on Sanghelios. In order to feed themselves, they remain completely still at a location, imitating a rock, waiting for unsuspecting prey to pass by. There is a Sangheili stance modeled on the Helioskrill's hunting position. It allows the performer to appear to be resting, but actually allows the user to be ready to spring to their feet in a matter of less than a second. The user must have a certain amount of stamina, however, because it can cause leg muscles to burn. Thel 'Vadamee used this position whilst being held in a cell by humans in the Rubble with three other SpecOps Sangheili.

Trivia
The "helios" part of their name may derive directly from the name of Sanghelios, their native planet.

List of appearances

 * Halo: The Cole Protocol