In the pilot, Temperance says the next closest forensic anthropologist after her is in Montreal, where the original novels are set.
Temperance Brennan is an anthropologist who writes about the character Kathy Reichs in her spare time. In real life, Kathy Reichs is an anthropologist who writes about the character Temperance Brennan.
Almost every time Booth, played by David Boreanaz, is in front of the camera he has on him a watch, his FBI ID, a holstered sidearm, a Zippo lighter, Craps dice, a $100 poker chip, a floaty pen (they type where a girls clothes fall off when you turn it upside down), 3x5inch index cards and he is wearing a St. Christopher medal. All of these items can be spotted being handled by Booth throughout the series.
Angela Montenegro's middle name is "Pearly Gates" which is the name of a guitar belonging to ZZ Top member Billy Gibbons, who plays Angela's father in some episodes.