Aggressive dogs can be scary and dangerous.  In their natural habitat, wolves and coyotes use aggression to establish their ranking in the pack, mating, and basic survival. In the family environment, those aspects of canine behavior are really not necessary.

Dogs can show their aggression in behaviors such as growling, snapping, showing their teeth, and biting.  The underlying intent on the part of the dog expressing the aggressive behavior is intimidation.
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Guinea pigs originated from the Andean region of South America, presently known as Ecuador, Bolivia, and Peru. They were a food source for mountain tribes around the year 2000BC. They are still to this day used as a food source in that area. They also live off of families scraps and are used as pets or collectors of evil-spirits in healing ceremonies. European trades transported quinea pigs to Europe, people saw them as exotic pets.

Where do Guinea Pigs get their name and why?

No one knows for sure just how the guinea pig came to be called a “pig”. They really are not pigs but are larger rodents. However they do tend to make noises that are very similar to that of a pig. They alos have some similar physical features with a pig. Their heads are large, with a rounded hind end, and with no tail. The guinea pig is also able to survive in cramped conditions such as a “pig pen” therefore they were easier to transport to England. Even in other languages they are referred to as pigs. The Dutch often called them “Guineas Biggetie” (Guinean piglet). In Germany they use the term “Meerschweinchen” (little sea pigs). The Germans gave the guinea pigs the name from when they would stop in the New World to stock up on provisions and would purchase large amounts of guinea pigs for their main source of meat.
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