A basic description of furry (purl furries) is an animal with human characteristics (or visa versa) or a person who shows interest in the idea of a humanized animal. Furries will often portray themselves online as their own character, or Fursona. One of the main sources of output for furries, the "furry fandom" as it is known, is visual art which depicts furry characters, often in life like scenarios. They tend to be a little on the weird side, but are generally easy going.
I've heard things about these "Furries"
Ah, yes. That old story about the whole sex & perversion thing. Now, I'm not going to lie and say that doesn't exist, because it does. However, this is a rare thing and is often looked down upon, and as for adult rated images, they are mostly artistic. It's just one of those things that the media likes to sink it's teeth in to and blow it up for the sake of ratings.
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Parkour is basically a way of turning obstacles in to short cuts. It has been described as being like a martial art, demanding physical and mental discipline. Parkour differs from other martial arts in that instead of training to fight, the practitioner trains for flight. Traceurs (male) or Traceuse (female)as they are called are trained in such a way that every part of the body learns to work together smoothly and efficiently.
The movements are meant to redirect one's momentum to achieve what would appear to be impossible.