• Limbs & Structure: Features six limbs (with the latest generations raising the body off the ground on four elongated limbs) and sharp claws capable of slicing through armor and uniforms. • Head & Senses: Has no eyes on its head, relying entirely on non-visual senses. • Teeth & Mouth: Possesses a prominent mouth filled with sharp, dangerous teeth. • Camouflage & Skin: Features internal chromatophores layered beneath a transparent outer skin, allowing the creature to blend into its surroundings and stay nearly invisible until close to its prey. • Fear-Scenting: Because they are blind, Ursas hunt by detecting pheromone signatures—specifically smelling the chemical hormones (like adrenaline) that human bodies secrete when a person feels fear. • "Ghosting": Humans can become invisible to an Ursa's senses only by completely suppressing fear—a technique known as "ghosting".