The Tiernod are a race of Human in the Milky Way galaxy, under the protection of the Asgard Protected Planets Treaty. The Tiernods live amongst a number of predators, and reside near caves. If a Tiernod were to be chased by a predator, he or she could enter one of these caves and apply an Asgard invisibility device to their bodies, effectively shielding them from the ferocious creatures. (SG1: "Shades of Grey")

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