Article
The development of archosaurian first-generation teeth in a chicken mutant.
Current biology : CB - 21 Feb 2006
Harris Matthew P, Hasso Sean M, Ferguson Mark W J, Fallon John F
Abstract excerpt
Modern birds do not have teeth. Rather, they develop a specialized keratinized structure, called the rhamphotheca, that covers the mandible, maxillae, and premaxillae. Although recombination studies have shown that the avian epidermis can respond to tooth-inductive cues from mouse or lizard oral mesenchyme and participate in tooth formation, attempts to initiate tooth development de novo in birds have failed....
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