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Seeley Booth is a former Army sniper with the Rangers who is currently an agent with the FBI. He frequently consults with Dr. Brennan, whom he nicknames Bones in the first episode, and her team, acting as a liaison between the FBI and the Jeffersonian Institute. When it comes to solving crime, Booth has a very different approach from Dr. Brennan and her team, preferring a more human, interpersonal and intuitive set of methods. (wikipedia.org)