This explains why it's impossible to make pacemakers with replaceable batteries. 1  Sinus bradycardia is a common reason for needing a pacemaker. Read about sinus bradycardia. 2  Read about sick sinus syndrome. 3  Read about heart block.
What Do Ferrets Eat in the Wild? Dark-footed ferrets depend on prairie dogs for everything from food to shelter to safety. These wild members of the weasel family eat prairie dogs practically exclusively and also live in abandoned prairie dog dens. They rely on these large holes for protection from eagles and other predators.
How Much Should They Eat if Feeding a Raw Diet? Ferrets need to eat muscle (at least 34%), high-fat (at least 20%) high quality chicken or lamb based food. Another (at least 46%) of the diet should be fur, bones, feathers, organs, and raw or cooked eggs as needed. If your ferrets are on a diet, you also need to leave the meat raw.