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.
What do wild chinchillas eat? Ferrets are often mistaken by pet owners as rodents, which are omnivorous, but they are actually mustelids. Ferrets cannot withstand plants in their diet because they do not have a cecum in their digestive track and are largely unable to digest plant matter.