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.
Basic Requirements for a Ferret Diet. 1  High protein - 30-40 percent on the nutrient analysis. 2  Protein must be high quality, highly digestible, and be animal-based. 3  High fat (at least 20 percent)  Very low in carbohydrates and fiber (less than 3 percent fiber)