Many advanced snakes use fangs to inject venom into their prey. The fangs may be either at the front or rear of the upper jaw, but biologists have been unable to agree whether these two arrangements are evolutionarily related. It is now shown that front fangs develop in the rear part of the jaw, and that the resemblances between front and rear fangs are so striking during their development that homology is probable.
- Freek J. Vonk
- Jeroen F. Admiraal
- Michael K. Richardson
