A millipede has 750 legs! :)
Biofeedback <span>is stress-reduction technique whereby electronic equipment measuring a person’s involuntary (neuromuscular and autonomic) activity helps him gain a level of voluntary control over these processes.
Biofeedback therapy will help you to relax and control involuntary response related to stress like heart rate, sweating, temperature and blood pressure. The electronic equipment will let you know when there is any sign of stress, therefore you know when to calm down yourself.</span>
If two populations of birds stop interbreeding because of a difference in song patterns this would be described as behavioral isolation.