In the 1800s John Farrar was one of the first to move teeth in slow increments using a mechanism that evolved into these
[DOC] [TLE] Jeopary Questions page 1155 - AT THE MOVIES - TriviaBistro.com [PAR] NATURE: The hermit crab's abdomen twists to one side so it tucks neatly into the 
animal's home, usually this ... "B"s: In the 1800s John Farrar was one of the first to 
move teeth in slow increments using a mechanism that evolved into these.