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.
Just make sure the bed is big enough. 4. Black-footed ferrets are mostly nocturnal while pet ferrets can adjust to any schedule. Occasionally you will see a black-footed ferret in the daytime but they are mostly nocturnal. Nighttime is perfect for a black-footed ferret to prey upon a sleeping prairie dog.lack-footed ferrets live only on prairie dog colonies thus if you see a ferret in your neighborhood then it is a pet ferret and not a wild black-footed ferret. Pet ferrets simply do not have the skills and instincts to survive in the wild.