In "Mummy in the Maze", Brennan exhibited ophidiophobia when confronted with snakes, but later only shows a moment of fright when confronted with another snake in "The Mastodon in the Room". She takes note of this, voicing her observation that she only seems to lose her head around snakes when Booth is also "there to be jumped upon", and also she mentions that she once had a pet snake during high school. It should also be noted that, in "The Man in the Morgue," Brennan handled a snake without any trace of fear, even while Booth is in the room.