A distinctly American breed, the Myotonic goat originated in Tennessee. The defining genetic trait is a neuromuscular condition which developed naturally that causes them to stiffen and sometimes fall over when startled. These goats are called by various lay terms.... Tennessee fainting goats (a misnomer, because they do not lose consciousness, hence they don't faint), wood leg, stiff-leg, nervous, or scare goats. The most accurate common name is the STIFF-LEG. Myotonia is seen in other species . . . human beings and tumbler pigeons are but two examples.
from [url]http://www.tennesseemeatgoats.com/myotonic.htm[/url]
from [url]http://www.tennesseemeatgoats.com/myotonic.htm[/url]