The Terrans are humans. Not necessarily from Earth, however. In StarCraft, they will be the most familiar race to play.
(compared to WarCraft) According to Computer Gaming World, May 1997, the Terrans will also be the most mobile. Barracks and some other structures will be movable. Terrans can also scavenge resources from dead Zerg and Protoss units, while other races are limited to mines.
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